Why does everything have to be gay now

Another way a "gay allele" might be able to compensate for a reproductive deficit is by having the converse effect in the opposite sex. The evolution of lesbianism is relatively understudied - it may work in a similar way or be completely different. There's way too much homophobia and suppression still present even in progressive places for the needle to swing too far towards inclusion yet.

Also relevant - although in no way proof - is research identifying physical differences in the brains of adult straight and gay people, and a dizzying array of homosexual behaviour in animals. If it appears in a man's genetic code it will code for same-sex attraction, but so long as this happens rarely the allele still has a net evolutionary benefit.

There are two or more ways this might happen. Scientists don't know the answer to this Darwinian puzzle, but there are several theories. But since gay and lesbian people have fewer children than straight people, a problem arises. It's becoming scientific orthodoxy.

If it means “I reject discrimination based on sexuality,” fine—most straight people now do, too. Some researchers believe that to understand the evolution of gay people, we need to look at how they fit into the wider culture. A minority of gay people disagree, maintaining that sexuality is a social construct , external , and they have made a conscious, proud choice , external to take same-sex partners.

Every now and then a family member receives a larger dose that affects his or her sexual orientation, but the allele still has an overall reproductive advantage. It mocks those who "think it's a decision, and you can be cured with some treatment and religion - man-made rewiring of a predisposition".

There are still a few homophobes among Millennials and Gen Z-ers, but progress is being made. There is some evidence for this second theory. Therefore, the theory goes, a low "dose" of these alleles enhances the carrier's chances of reproductive success. For example, an allele which makes the bearer attracted to men has an obvious reproductive advantage to women.

But how does it fit with Darwin's theory of evolution? Since the early s, researchers have shown that homosexuality is more common in brothers and relatives on the same maternal line, and a genetic factor is taken to be the cause. The bottom line is this: being gay, bi, trans, or what have you is not some “trend” made up by.

These results haven't been replicated in some ethnic groups - but that doesn't mean they are wrong with regards to the Italian population in Camperio-Ciani's study. A group of scientists suggested Tuesday that homosexuals get that. Some of the gay person's genetic code is shared with nieces and nephews and so, the theory goes, the genes which code for sexual orientation still get passed down.

All that being said, an argument against "not everything has to be gay" is that not everything is - and not enough is. Vasey hasn't yet measured just how much having a homosexual orientation boosts siblings' reproduction rate, but he has established that in Samoa "gay" men spend more time on uncle-like activities than "straight" men.

Paul Vasey's research in Samoa has focused on a theory called kin selection or the "helper in the nest" hypothesis. If it means “I reject the gender binary,” fine—although the majority of gay people don’t. One possibility is that the allele confers a psychological trait that makes straight men more attractive to women, or straight women more attractive to men.

Andrea Camperio-Ciani, at the University of Padova in Italy, found that maternal female relatives of gay men have more children than maternal female relatives of straight men. Scientists may have finally solved the puzzle of what makes a person gay, and how it is passed from parents to their children.

But scientific opinion is with Macklemore. It's possible that different mechanisms may be at work in different people. This would compensate for gay people's lack of reproduction and ensure the continuation of the trait, as non-gay carriers of the gene pass it down. The allele - or group of genes - that sometimes codes for homosexual orientation may at other times have a strong reproductive benefit.

In the last two decades, dozens of scientific papers have been published on the biological origins of homosexuality - another announcement was made last week. The idea is that gay people compensate for their lack of children by promoting the reproductive fitness of brothers or sisters, contributing money or performing other uncle-like activities such as babysitting or tutoring.

Macklemore and Ryan Lewis's hit song Same Love, which has become an unofficial anthem of the pro-gay marriage campaign in the US, reflects how many gay people feel about their sexuality. The implication is that there is an unknown mechanism in the X chromosome of men's genetic code which helps women in the family have more babies, but can lead to homosexuality in men.

Most of the theories relate to research on male homosexuality. The fa'afafine of Samoa dislike being called "gay" or "homosexual".