> I think it is the latter. One has but to open TikTok to quickly come across a video instilling negative beliefs about the opposite sex with tons of commenters asserting the validity of those beliefs. Confirmation bias at scale.

I don’t have a study for this but I don’t believe this. More likely than now you have to be consuming such content to get such content. If you go to TikTok for positive vibes and actively search it out , that’s what you will get.