The answer is pretty simple and it starts with young boys and young men. What media do they consume right now? Predominantly they consume streamers who play videogames or talk about random stuff, and most of the streamers push right wing views including regressive views on women. If your kid is watching gamer streams they have been exposed to anti "woke" narratives, IE that any game that features a non-white male protagonist is woke. Oh and women should be in the kitchen. Oh and women are sluts, sluts are bad...but the best way to prove you're cool is to have sluts on your arm. In short it's just a lot of brain rot that is being consumed nonstop, mainly by white boys and men. Is it surprising that they then get into politics and dislike diversity, women's issues, etc?
This is a counter culture movement but differs from previous ones. The free love/rock n roll counter cultures of the 60s and 70s were a clear rejection of more conservative ideals about family or behavior. But I'd argue this dudebro shyt is ALSO a rejection of conservative ideals about family, while also rejecting more modern ideals (diversity, inclusion, etc). In what world is it conservatism to argue that fathers should play no role in raising their child and a man should get rid of his wife once she turns a certain age because old women are worthless. Those are things Andrew Tate, Fresh & Fit, etc say on a near daily basis. Does anyone think the average conservative person or politician at any point in the last 70 years would agree with any of that shyt? I don't. This shyt has no basis in our political or social history yet this is what's cool to a lot of kids now, as well as young men.
Do I think democrats can do a better job of addressing unique problems boys and young men have? Yes. But all the workshop classes and access to trades isn't going to stop young boys from thinking it's cool to denigrate or resent women.