The difference is that it's amplified times a million.I've been researching incels since watching this show. It seems like boys aged 12-15 are having the same issues as every other generation but now they're being told it's because of feminism. I never got laid when I was that age. I was a virgin. I was teased for it (ironically, as most other kids were virgins too). But we didn't label it as a feminist issue, it was just part of growing up. Now I'm much older and I see 80-90% of my male friends having casual sex regularly. It's just an age thing. If they really think only 20% of men are having casual sex they're sorely mistaken.
Boys don't just see one guy at school with a hot girlfriend.
They're bombarded - every day - with videos and imagery of young girls they're never going to date.
Just one part of the issue, of course. But they're made to feel like losers.
(I think there's plenty of data around showing 'intimacy' among kids/young adults has massively dropped off.)