>The theory of gay gene couldn't have been supported by the evolutionary algorithms.

We have genetic diseases that kill people before they reach adulthood. We have gay people who get married, make kids, and feel zero sexual attraction to their spouse.

Evolution is a complex process. It's not a mere "more offspring = everyone else disappears" deal.

Yes it is totally supported by evolutionary algorithms. Traits that are harmful in some situations and beneficial in others can be passed on, like sickle cell anemia which gives a degree of protection against malaria. The same as traits which are beneficial to some of your offspring and advantageous to others, like a strong jaw. Which would probably look better on your sons than your daughter.

It can be evolutionary advantageous for some of your kids to come first, even if it means others come last, rather than all your kids coming second.

We have two conflicting pattern matching algorithms: Being attracted to females (smell, sound of voice, body composition) and being attracted to males.

A "male gay gene" could evolutionary surivive if it leads to boy crazy girls. Vice versa for a "lesbian gene".

In fact the study did find that partly different genetics were correlated for lesbians and for gays.

There has been societal pressure, extreme societal pressure for the last couple of thousand years, to get married and have kids which will pass along any gay genes. This would also make those applying this social pressure responsible for it's prevalence.

> Natural selection means that a trait like male homosexuality, if it had a genetic component, couldn't have persisted over evolutionary time if the individuals that carry the genes associated with that trait are not reproducing.

Not really, if we go back to time people were prosecuted for being homosexual. They used to have a wife and kid but still practised homosexuality in private or killed their desires and gave it up at great pain and sufferings.

It will take time for natrual selection to remove Homosexual genes (if we believe they exit) if they've full freedom and aren't forced to have kids.

Is prosecuting people for homosexuality genetic, or something that could perhaps change pretty rapidly? Perhaps for a million years, there were gay genes and gay people and no problem with it, then for five thousand years people had a problem with it. If humans have a gay gene, almost certainly there's some less social animals have a gay gene.