porn and women

[Angrboda]

The problem I see with those studies is that they all seem to be a case of post hoc ergo propter hoc. Are the differences in behavior between the porn users and the non-porn users a result of using porn, or just a correlation with other unrelated values? The studies don't answer that question, so your greater point falls flat.

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Women tend to want relationships with men. Men who watch porn a lot aren't learning how to be in such relationships. So, yeah, porn is bad for women. 

Men who watch porn perhaps aren't learning how to be in relationships while they are watching porn. But that isn't what you've claimed. You seem to be relying upon a conflation between what men are doing while watching porn and what they are doing outside of watching porn, leading to an essentially unsupported conclusion.