The problem is that most porn depicts sex as somewhat violent and sets unreasonable expectations of what sex is like.

Not every woman is capable of deep-throating or going straight from vaginal to anal without adding some extra lube. Most women don't want their man to put his hands around her throat during sex. Almost none of them are okay with going from ass to mouth.

Porn also sets an unrealistic standard for penis size. When the average is 5.2 inches with a standard deviation of about an inch, it becomes clear that the 7+ inch penises used in porn are like the top 5%.

I don't think parents are having these conversations with their kids about this.

I would be interested in a discussion here about what sex acts people find demeaning to women. You cherry-picked from a narrow band of agreeable examples. Are blow jobs themselves demeaning to women? I suspect that many (perhaps here but certainly elsewhere) would say so.

I would also welcome a discussion about how porn might be disadvantageous to boys (and the very medicated male performers) and how all this contrasts with tolerance towards non-sexual violence depicted on screen.