Even heterosexual relations have been queered. Thanks to contraception, women are essentially neutered, doctored, altered, "fixed" --- reengineered to conduct their sex lives promiscuously, like promiscuous men. Without the distinctive qualities romantic attachment and fertility, women are (or can be treated like) boys with boobs.
I am convinced that the contraceptive revolution BROUGHT ABOUT the societal acceptance of homosexual behavior. You already have the essential ideology in place: sex as self-gratification.