If homosexuality is genetic (as I believe that it largely is) and we, the planet, pursue a policy of eugenics, does that mean that homosexuality will eventually be eradicated?
I mean, if we reach a point where we can "design" our children (ok, I'm talking far future here), and you could pick height, weight, hair color and sexual orientation...aren't you going to pick "straight" every time?
Maybe not. I dunno. That's why it's a "random thought".