BetwixtBetween wrote:
We evolved as social creatures. Working together- physically and socially is how we managed to survive without teeth or claws or a tough outer shell or ability to produce poison. We hunted together. We gathered together. We watched other couples' kids, not just our own. We shared knowledge and resources. We buried our dead together. We lived in groups. There is nothing in our development as a species that would eliminate homosexuality, and a lot that would support our having an extra set of hands.
We developed social ability to aid in survival, yes, which reproduction is a part of (albeit some of us don't have this social ability
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).
Yes, humans watch other kids, but the majority have their own too.
None of this takes away from the fact that homosexuality is entirely superfluous for a species that's to survive, and is a rather silly concept for specific evolution: a person that reproduces, and also can look after other kids, is far more useful than one that doesn't reproduce but can also look after others. You'd have to take the former is species survival is important -- you'd want all of your population to be like this.
Homosexuality is just as much a disorder as someone with an ASD insofar as survival is concerned -- both aren't going to reproduce in most cases. It's just that reproduction isn't as important today.