Well, I don’t want to repeat myself, but I genuinely think part of it comes from not being interacted with on a human emotional level enough. It’s less inherently linked to capitalism more of a subtle aspect. Capitalism doesn’t give us enough free time to communicate through our insecurities properly and capitalism even plays an active role in creating or worsening your insecurities to sell solutions/ aka products to you. But it happens in socialist society too. You’ll see men and women flaunting, not because of capitalist institutions, but because no place is perfect, there are always people who don’t receive the human contact that is deserved(and that applies to conventionally attractive people too, they are fetishized, treated like they are on a different social tier). So I think personally most of the intense sexualization of everything is most certainly a byproduct of capitalism that, like you mentioned, makes markets of everything and uses visceral emotions to get to their market base, but it mostly comes from insecurity. Some people are very sexual and don’t seem insecure though, those are probably the best kind of sexual people because I feel like they gratify themselves rather than a preconceived notion of themselves and how they should act according to society