Why do people continue to use the Adam and Eve argument in the gay debate?

Question

When asking a question on whether homosexuality is wrong or immoral, people always say, "God made Adam and Eve, not Adam and Steve." Well, obviously the first people were a man and a woman, if it was two men we wouldn't have a human population. Just because the first two humans were a man and a woman doesn't mean that God intended for everyone to be heterosexual. People aren't even opening their minds when they make a statement like that. If there is indeed a gay gene, it could have easily been inherited from the mother, maybe even from Eve. It would then have been passed down through the generations. Why don't people understand that the Adam and Eve argument is just not a logical argument?

Answer 1

I think it's because there running out of arguments, so have to result to rhymes.