> I think this is a very Americanized perspective, though, so I would be especially interested in hearing perspectives from other cultures.
I agree this is very Americanised, I can chime from two different perspectives and cultures: Brazil and Sweden.
Brazil is... Very Americanised, I believe that the same issues the USA has with sex are present in Brazil, it's expressed in some different ways but the underlying issues are more-or-less the same. Even though Brazil is seen through a very sexualised image from the outside, it's still a very conservative society where women are shamed for having sex.
Now for Sweden: I don't think anything you said really applies here, people are very open about sex, parents just consider it a natural thing and will allow their teenagers to have sex in their house, I heard stories from friends who had breakfast with the parents of a hook up after a night out, etc. There is very little taboo about sex here, even though not everyone is open to talk about it, the vast majority is completely fine with people having sex.
Which brings me to a point I don't really grasp how it happens, my sexual experiences here showed me that women suffer some similar issues as the women in Brazil: lots of them don't have good sex, not even with their partners, most of the times not due to a lack of communication but a lack of understanding from men. I've heard from girlfriends similar behaviour from men here as in Brazil, not the aggressive type but the lack of care about their needs, a lack of interest and curiosity in sex itself, to improve it, etc.
And then I don't know if this is something global and most men in the world are really that bad sex partners, it was really surprising to hear from Scandinavian women some of the same issues that girlfriends in Brazil went through. Not even counting the abuse, in Brazil it's much more extreme but I was surprised by how many of my girlfriends here had at least one instance of rape or sexual abuse, usually from partners.