I really don't understand the "We don't know what God did regarding homosexuality, so it might or might not be okay, but the Bible says don't marry or have sex or you'll go to hell" thing.
If we don't know what God says about homosexuality in and of itself, it makes no sense that God would create LGBT people and then deny them intimacy and commitment, unless you think homosexuality is some kind of ultimate test in self-denial.
Plenty of gay people throughout history have been in straight marriages, and in pagan societies like ancient Greece, many men indulged in pedophilia with younger boys before getting married to a woman. I don't buy that orientation is innately fixed and that the individual has no agency in the matter, but assuming that were the case, it doesn't matter, because when the Bible talks about homosexuality in the Old and New Testament, it's always referring to the actions that are sinful.