I made it through 5 of 8 pages before I give up but I just want to add this in here.
If all bees were worker bees, bees would die out. Worker bees are infertile. That doesn't mean that worker bees aren't beneficial and necessary to the bee "community" as it were.
There are suggested evolutionary reasons for non-heterosexuality (even though the modern concept of homosexuality is just that, a modern concept. Every culture perceives these things differently.). It's possible that it's tied to a gene related to having children, it's possible you have better survival rates in children with gay relatives because there are non-child bearing relatives who help to raise the child.
Regardless we're not tied to pure survival any more. We're not immune from natural selection but we do have far more control over our sexual selection and choices than we did before. There's really no point in going "BUT IF EVERYONE WAS GAY" because everyone isn't.
THANK YOU!
I was waiting for someone to address that. Let me add or rather reiterate, if you please, that reproduction is merely one facet of Biological Evolution. Reproduction doesn't actually have anything to do with sexual orientation, perhaps save for inclination. I mean Oscar Wilde had a wife and three kids! He was still quite.......erm Fabulous, if you get my drift.
Survival Strategies are just as important as biological reproduction. I mean any idiot can have sex and give birth, but if you don't have some sort strategy in place, like every species on the planet does, then your offspring won't survive and you're doomed. Reducing Evolution and "natural" down to capability of reproduction whilst keeping intact your sexual behavior with your sexual orientation is at best overtly simplistic. It ignores the importance of keeping your offspring alive, it ignores that information or "passing genetic information" isn't always about linear genetics. Often times the sum is just as important as the individual passing on beneficial genetic traits. For example, there is a hypothesis that posits that homosexuality is beneficial to our survival strategy. Humans are social animals and like most social animals (and even a couple of antisocial ones) our survival strategy relies on us hand rearing our offspring. Humans do this in tribes. If you have a small portion of individuals who are not very inclined to reproduce or even sterile this is actually beneficial to the offspring. You have more protection, more animals providing food and even for a lack of a better term, "back up parents" who can pick up the slack should anything happen. We even have that in modern society. We call that "Foster/Adoptive Parents." This extra layer of protection/food gathers and back up parents gives a boost to the overall survival rate of said offspring. Thereby ensuring not only beneficial genetics are passed on to the next generation, but the sum of the tribe/herd's genetics are also passed on and survive.
I'll leave the floor open to those more learned in matters such as Genetics to explain that further, if they so choose, since that is not my area of expertise.
If everyone were gay, we would not stop reproducing. We might slow down a bit. But all that would happen is Bisexual behavior would increase tenfold and surrogacy would skyrocket. That's it. Hell there's even gay parenting occurring in nature. Like birds for example (especially black swans.......for some reason.)