I think the reason people get so angry is that way down subconsciously deep, they know they're doing something wrong, but society tells them they're doing right, and the conflict is killing them. There's a REASON every denomination taught that contraception was sin for 1900 years, till the Piskies said it was okay after all. I personally don't look to a church that was founded on the sexual sin of adultery for definitions of other sexual sins.
You just nailed it!