I think this part needs to be said a lot louder and a lot more often - and not only when addressing SADs. Homosexuality isn't the early stage of our moral sickness, it's the final stage. The early stage was entirely heterosexual. It's the confusion of sex with recreational activities. It begins with winking at adultery and fornication, then progresses through no-fault divorce, abortion, homosexuality, bestiality, and finally self-destruction.
It begins when we start worshipping the created (sex) instead of the creator. And the heterosexuals need to get their own houses in order if we ever hope to combat the SAD problem.
Shalom.