Do "normal" straight people spend hours every day posting anti-gay rhetoric on a gay-themed forum thread?
Homosexuality is part of nature. It has always existed and always will. You don't have to like it. You don't have to understand it. But we're not going anywhere. Try to get over whatever is troubling you so much. Life is too short to spend in the condition you're in. Peace!
Homosexuality could probably be bred out of the human population if:
gay men do not marry straight women and have daughters.
and if: any woman who has gay men in their ancestral line for many generations do not have children.
But that would be a shame in a way because so many gay men and gay women are wonderful human beings.