Male bisexuality is particularly presumed to be non-existent, with sexual fluidity studies adding to the debate. In 2005, researchers Gerulf Rieger, Meredith L. Chivers, and J. Michael Bailey used penile plethysmography to measure the arousal of self-identified bisexual men to pornography involving only men and pornography involving only women. Participants were recruited via advertisements in gay-oriented magazines and an alternative paper. They found that the self-identified bisexual men in their sample had genital arousal patterns similar to either homosexual or heterosexual men. The authors concluded that "in terms of behavior and identity, bisexual men clearly exist", but that male bisexuality had not been shown to exist with respect to arousal or attraction. The assertion of Bailey that "for men arousal is orientation" was criticized by Fairness and Accuracy in Reporting (FAIR) as a simplification which neglects to account for behavior and self-identification. Further, some researchers hold that the technique used in the study to measure genital arousal is too crude to capture the richness (erotic sensations, affection, admiration) that constitutes sexual attraction. The National Gay and Lesbian Task Force called the study and The New York Times coverage of it flawed and biphobic.
Political opposition tends to come from social conservatives, often with evangelical Christian ties, who view homosexuality and cross-dressing as signs of immorality. For example, after the court ruled against the unequal age of consent, Hong Kong leader Donald Tsang, a devout Catholic, publicly opposed the court's decision and fought for an appeal until 2006. However, most political parties and individual politicians have tended to avoid making public statements in favour of LGBT rights, although this has slowly begun to change.
The first two decades of the 21st century saw same-sex marriage receive support from prominent figures in the civil rights movement, including Coretta Scott King, John Lewis, Julian Bond, and Mildred Loving. In May 2011, national public support for same-sex marriage rose above 50% for the first time. In May 2012, the NAACP, the leading African-American civil rights organization, declared its support for same-sex marriage and stated that it is a civil right. In June 2013, the Supreme Court of the United States struck down DOMA for violating the Fifth Amendment to the United States Constitution in the landmark civil rights case of United States v. Windsor, leading to federal recognition of same-sex marriage, with federal benefits for married couples connected to either the state of residence or the state in which the marriage was solemnized. In May 2015, national public support for same-sex marriage rose to 60% for the first time. In June 2015, the Supreme Court ruled in the landmark civil rights case of Obergefell v. Hodges that the fundamental right of same-sex couples to marry on the same terms and conditions as opposite-sex couples, with all the accompanying rights and responsibilities, is guaranteed by both the Due Process Clause and the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution.
In some cases, animals will choose to engage in sexual activity with different sexes at different times in their lives, and will sometimes engage in sexual activity with different sexes at random. Same-sex sexual activity can also be seasonal in some animals, like male walruses who often engage in same-sex sexual activity with each other outside of the breeding season and will revert to heterosexual sexual activity during breeding season.
According to the federal government's Government Accountability Office (GAO) in 2004, more than 1,138 rights and protections are conferred to U.S. citizens upon marriage by the federal government; areas affected include Social Security benefits, veterans' benefits, health insurance, Medicaid, hospital visitation, estate taxes, retirement savings, pensions, family leave, and immigration law.
Transgender, then, unlike transsexual is a multifaceted term. One example of a transgendered person might be a man who is attracted to women but also identifies as a cross-dresser. Other examples include people who consider themselves gender nonconforming, multigendered, androgynous, third gender, and two-spirit people. All of these definitions are inexact and vary from person to person, yet each of them includes a sense of blending or alternating the binary concepts of masculinity and femininity. Some people using these terms simply see the traditional concepts as restrictive. Less than one percent of all adults identify as transgender.
On 4 February 2014, the Scottish Parliament overwhelmingly passed legislation legalising same-sex marriage. The bill received royal assent as the Marriage and Civil Partnership (Scotland) Act 2014 on 12 March 2014. The law took effect on 16 December 2014, with the first same-sex weddings occurring for those converting their civil partnerships into marriage.
The rainbow flags were first flown during the San Francisco Gay Freedom Day march on June 25, 1978. The first batch of flags was handmade by Baker and his fellows. Because of some issues in the production, they had to replace Indigo color with basic blue and turquoise and pink stripes were totally removed. Even today it is the most used version of the flag. It is displayed as the symbol of gay pride during the Pride Month all across the United States. There are many other versions of the gay pride flag. For instance, few communities have added a black stripe to raise AIDS awareness. Philadelphia added brown and black stripes which represent racial inclusiveness. However, the six-striped version is the standard and most popular one.
Sex is what "junk" (physical sex organs) you were born with. Which is more than just chromosomes like some would like to suggest. In fact, you can not tell someone sex from sex chromosomes alone. But that's different can of worms. People assume that there are only females and males, yet there are people who are born somewhere in the middle. Or what we know has DSD or intersex.
‘”John” was suicidal. He had been bullied by trolls on social media for most of his life for being different. The bullies were primarily people who claimed, based on their religious beliefs, that “John” was going to hell and deserved to die. They described how they would kill him on his twitter page and people supported their hate. Desperate for help, John sought treatment for his shame, depression, and suicidality. Although he was scared to share about himself with a stranger, he felt desperate for help as he had NO desire to harm anyone, ever. Once he shared about his attraction to children, his therapist told him, “I don’t treat sex offenders,”’ a passage on The Prevention Project about MAPs reads.
As more transgender people are represented and included within the realm of mass culture, the stigma that is associated with being transgender can influence the decisions, ideas, and thoughts based upon it. Media representation, culture industry, and social marginalization all hint at popular culture standards and the applicability and significance to mass culture as well. These terms play an important role in the formation of notions for those who have little recognition or knowledge of transgender people. Media depictions represent only a minuscule spectrum of the transgender group, which essentially conveys that those that are shown are the only interpretations and ideas society has of them.
Non-recognition of the identity of Hijras/transgender persons denies them equal protection of law, thereby leaving them extremely vulnerable to harassment, violence and sexual assault in public spaces, at home and in jail, also by the police. Sexual assault, including molestation, rape, forced anal and oral sex, gang rape and stripping is being committed with impunity and there are reliable statistics and materials to support such activities. Further, non-recognition of identity of Hijras /transgender persons results in them facing extreme discrimination in all spheres of society, especially in the field of employment, education, healthcare etc.
Same-sex marriage is a civil right. The NAACP (National Association for the Advancement of Colored People), on May 21, 2012, named same-sex marriage as "one of the key civil rights struggles of our time."  In 1967 the US Supreme Court unanimously confirmed in Loving v. Virginia that marriage is "one of the basic civil rights of man."  The White House website lists same-sex marriage amongst a selection of civil rights, along with freedom from employment discrimination, equal pay for women, and fair sentencing for minority criminals. 
Like people of other LGBT sexualities, bisexuals often face discrimination. In addition to the discrimination associated with homophobia, bisexuals frequently contend with discrimination from gay men, lesbians, and straight society around the word bisexual and bisexual identity itself. The belief that everyone is bisexual (especially women as opposed to men), or that bisexuality does not exist as a unique identity, is common. This stems from two views: In the heterosexist view, people are presumed to be sexually attracted to the opposite sex, and it is sometimes reasoned that a bisexual person is simply a heterosexual person who is sexually experimenting. In the monosexist view, it is believed that people cannot be bisexual unless they are equally sexually attracted to both sexes, regulating sexual orientation to being about the sex or gender one prefers. In this view, people are either exclusively homosexual (gay/lesbian) or exclusively heterosexual (straight), closeted homosexual people who wish to appear heterosexual, or heterosexuals who are experimenting with their sexuality. Assertions that one cannot be bisexual unless equally sexually attracted to both sexes, however, are disputed by various researchers, who have reported bisexuality to fall on a continuum, like sexuality in general.
In 2007, following international pressure, a Pride Parade was held once again in Riga with 4,500 people parading around Vērmane Garden, protected physically from "No Pride" protesters by 1,500 Latvian police, with ringing the inside and the outside of the iron railings of the park. Two fire crackers were detonated with one being thrown from outside at the end of the festival as participants were moving off to the buses. A man and his son were afterwards arrested by the police. This caused some alarm but no injury, although participants did have to run the gauntlet of "No Pride" abuse as they ran to the buses. They were driven to a railway station on the outskirts of Riga, from where they went to a post Pride "relax" at the seaside resort of Jūrmala. Participants included MEPs, Amnesty International observers and random individuals who travelled from abroad to support LGBT Latvians and their friends and families.
Gay marriage legalization is correlated with lower divorce rates, while gay marriage bans are correlated with higher divorce rates. Massachusetts, which became the first US state to legalize gay marriage in 2004, had the lowest divorce rate in the country in 2008. Its divorce rate declined 21% between 2003 and 2008. Alaska, which altered its constitution to prohibit gay marriage in 1998, saw a 17.2% increase in its divorce rate over the same period. The seven states with the highest divorce rates between 2003 and 2008 all had constitutional prohibitions to gay marriage. 
In January 2019 the Hong Kong High Court agreed to hear two challenges to the city's refusal to recognise same-sex marriage. The two separate legal challenges were mounted by a 21-year-old University of Hong Kong student, known as TF, and a 31-year-old activist, known as STK, who argued that the inability of same-sex couples to get married violated their right to equality under the city’s Bill of Rights and the Basic Law. The judge in the case gave the applications license to be heard by the court, though suspended them to first hear another case involving a 29 year old lesbian, who is seeking for a civil union partnership system to be implemented in Hong Kong.
LeVay's (1991) examination at autopsy of 18 homosexual men, 1 bisexual man, 16 presumably heterosexual men and 6 presumably heterosexual women found that the INAH 3 nucleus of the anterior hypothalamus of homosexual men was smaller than that of heterosexual men and closer in size of heterosexual women. Although grouped with homosexuals, the INAH 3 size of the one bisexual subject was similar to that of the heterosexual men.
Perhaps because systems of religion and systems of civil authority often reflect and support each other, the countries that had reached consensus on the issue by the early 2000s tended to have a single dominant religious affiliation across the population; many such places had a single, state-sponsored religion. This was the case in both Iran, where a strong Muslim theocracy had criminalized same-sex intimacy, and Denmark, where the findings of a conference of Evangelical Lutheran bishops (representing the state religion) had helped smooth the way for the first national recognition of same-sex relationships through registered partnerships. In other cases, the cultural homogeneity supported by the dominant religion did not result in the application of doctrine to the civic realm but may nonetheless have fostered a smoother series of discussions among the citizenry: Belgium and Spain had legalized same-sex marriage, for instance, despite official opposition from their predominant religious institution, the Roman Catholic Church.
Belgrade Pride parade was held on October 10, 2010 with about 1000 participants and while the parade itself went smoothly, a riot broke out in which 5600 police clashed with six thousand anti-gay protesters at Serbia's second ever Gay Pride march attempt, with nearly 147 policemen and around 20 civilians reported wounded in the violence. Every attempt of organizing the parade between 2010 and 2014 was banned.
Another parade, this time billed as an international event, was scheduled to take place in the summer of 2005, but was postponed to 2006 due to the stress on police forces during in the summer of Israel's unilateral disengagement plan. In 2006, it was again postponed due to the Israel-Hezbollah war. It was scheduled to take place in Jerusalem on November 10, 2006, and caused a wave of protests by Haredi Jews around central Israel. The Israel National Police had filed a petition to cancel the parade due to foreseen strong opposition. Later, an agreement was reached to convert the parade into an assembly inside the Hebrew University stadium in Jerusalem. June 21, 2007, the Jerusalem Open House organization succeeded in staging a parade in central Jerusalem after police allocated thousands of personnel to secure the general area. The rally planned afterwards was cancelled due to an unrelated national fire brigade strike which prevented proper permits from being issued. The parade was postponed once more in 2014, as a result of Protective Edge Operation.