>The UK has a lot of sex education, no such taboos, and is the home of OnlyFans. Are any of the problems you mention better in the UK than the US?

I don't know, probably.

>There is no reason this has to be true.

The incessant need of moralists and God-botherers to purge society of anything they deem immoral is the reason. You give these people an inch and and a legal pretext and they take a mile.