I was a teenage boy in the 90s and "girls are stupid" is definitely not a Tik Tok original. Yeah, yeah, scale matters but this is not in fact the first generation to discover sex differences or vices.
Let’s please not pretend this is even comparable to the 90s. Scale is a quality of its own, and the scale of the current situation, both in severity and reach, is very different.
Social media as a technology isn’t necessarily the root cause of all those problems. But it is the medium by which those were allowed and incentivised to proliferate at an ever increasing pace.