There is a world of nuance separating "normalizing" and "banning" something though, that's simply a false dichotomy.

I'd wager most "normal" people would recoil at the idea of eating excrement and, for all my open-mindedness, it's probably not something I'd actively endorse. But banning it is on a whole other leaf. Things can and should be allowed to exist on the fringe.

Otherwise we're moving towards the subject of the T.S. Eliot quote where "everything that is not forbidden will be compulsory, and everything not compulsory will be forbidden."