Great question. I only have one child, a daughter almost 17 (and no, hblalr, you can't see her tits) and I hope to have grandchildren some day, so for purely selfish reasons if it was that simple then the answer is yes.
I had a gay cousin and it was obvious from the time he was a little boy he was "different," and watching him grow up with the stigma of being gay, with the rejection from his parents and his peers was sad. I really feel like he couldn't help his sexuality because he was born that way before any of us even realized what sexuality was.
He died from AIDS about five years ago, and up to the very end of his life his Dad couldn't accept him as his son. So yeah, I wouldn't wish his life an anybody. Had he been straight he would have had less conflict and stress and would have lived a happier life.