I do think porn is having some unhealthy side effects. I don't think one should get too alarmed about porn luring people into doing depraved and unwholesome forms of sex. People are creative, they have been doing kinky stuff for as long as there has been people. Instead of demonising smut featuring anything outside of the missionary position we ought to focus our attention on consent and mutual respect.

What I do think are problems with porn is how it sets unrealistic expectations for what sex is going to be like. Both in regards to looks and with regards to the act itself. If people think they're going to have huge ballooning tits and/or cocks in order to be attractive, that they have to be able to fuck like jackhammers right from the beginning or that nothing ever goes wrong, doesn't feel as good as expected then they're going to be disappointed with having completely normal sex.

Another danger is how porn under capitalism is commodifying sex. It's all about OnlyFans models hustling for subscribers and consumers being little pricks who feel entitled to getting off because they paid good money. Neither is fostering healthy relationships.