Homosexuality will never go away while heterosexual couples breed them, including Christian and theistic couples. Anyone can be born gay including folks who grow up indoctrinated into Christianity or any other religion. It's purely the luck of the draw and it's too smaller minority to have any effect in society has a whole. The human race isn't going to die out because a small minority of the population are attracted to the same sex. That argument is daft. Nature is not perfect. most people are fully heterosexual while some are fully homosexual and there is everything in-between, including bisexuals. That's just how it is and no amount of Bible verses can change it. Nature cares not a whit for religious beliefs.
It's a dreadful and sad fact that so many young people especially gay Christians choose suicide as result of the abysmal bigotry and shame they are subject to from their own family and peers.
There is an excellent film about this very subject with Sigourney Weaver called:
Prayers for Bobby
Highly recommended and I suggest, if you're incline to hate those who are different that do no harm amongst consenting adults, try to overcome your bigotry and show a little human kindness instead.
There are many things in the Bible that you would find unsavoury if you think about them so just have a little humility on this issue.
Be kind. Be charitable. Homosexuality is not going to go away.