I think in a general sense, there’s an important difference between porn that involves real people and porn that is essentially just fiction writing or cartoon drawings with no direct reference to real people. I say general though, because I’m sure cultural context can override this for various reasons. Western Christian capitalist culture is likely not quite the same as Burkinabe culture, for example. In the west, it tends to be reactionaries who are more so pushing anti porn and then on top of some of them being notable hypocrites about it anyway, you also get the stuff where they’re pushing it not because of harm it can do to women, but because of nonsense about it “weakening” men or whatever.

As personal views, I don’t think porn between real people has any social need to exist and probably does majority harm than good in the expectations it creates about sex, without even getting into the harm it can do to “models”. But porn as fictional erotic stuff without real people in it, it’s hard to imagine some people not doing that as a casual thing, whether they share it or not, and that often seems to be more about fantasies than about presenting something like a real sexual relationship. Though even then, it can lead people astray to a point. I remember some kerfuffle about Fifty Shades of Grey movie from the BDSM community because they felt that it was misrepresenting what a consenting relationship of that kind can and should look like.