We also outlaw the depiction of any crimes related to sex, and here we find it easier to justify the ban, but in our haste we clump together actual crimes committed against a real victim, and imaginary crimes such as e.g. a cartoonist drawing a rape scene. In the latter case we close our eyes to the fact that we claim to support something called "freedom of speech" and, in our neurotic hunt to ban things sex-related we trample our principles.
Same goes for e.g. CSA, but in that case in particular, logic and consistency seems to go out the window and principles are sacrificed in the blink of an eye. It makes me a little depressed to see.
As for individual countries trying to enforce their local socio-cultural norms on the rest of the world, that is of course equally silly. The US is great in many ways, but introspection and ability to follow principles is sometimes lacking for sure.
I wouldn't be surprised if our sexual neurosis is what makes an AGI finally decide that we're not competent to captain the ship anymore.