The religious right claims to believe that homosexuality is a form of sexual deviation.
The religious right claims to believes that god created sex only for the purpose of procreation and nothing, not abortion, not birth control, should prevent procreation.
So, if god created sex solely for the purpose of procreation, acts that cannot lead to procreation cannot be considered sexual. So while what homosexuals do in the privacy of their own homes may bring mutual pleasure, intimacy and bonding they cannot be considered sexual and thus not sexually deviant.
The religious right also claims that a homosexual society would be doomed because there would be no procreation. They know better. They know that homosexuals know how procreation works. They know that homosexuals want families and want the species to continue.
In a homosexual society gays and lesbians would ensure that by having sex together for the purpose of procreation and only for the purpose of procreation, There would be no birth control and no abortion because whenever people had sex it would only be for procreation.
Sex for procreation and only for procreation. It would be the religious right's nirvana.