The only taboos left are incest and pedophilia (and profs and psychologists, supported by NAMBLA and their brothers-in-arms the ACLU are nomalizing that as we speak), bestiality, necrophilia, and cannibalism. Everything is else is normal, natural, fine, and okey-dokey.
Even ten years ago most people would have shuddered with horror to see what now is commonly accepted and seen on TV. It's called desensitizing the sheeple. Or putting the frog in cold water and gradually turning up the heat.
The only solution I can see short of major catastrophe of some sort is a strong religious revival among a lot of people.