This is not my personal opinion, I know Gen Z men who voted for Harris. But the voter demographics really speak for themselves, and maybe now people will look at the radicalization of young men as a serious (but solvable) issue.
2020 was different from 2024. It was a very unique set of circumstances with an election in the middle of pandemic, with an incumbent who was never broadly popular, amidst utterly terrible economic conditions.
Still, Trump’s base showed up, just as they did on Tuesday.
Biden had the benefit of all the unlikely voters not being able to ignore the country burning down around them, he got a lot of dissatisfied people who don’t pay attention to politics to come out.
Harris didn’t, she got the Dem base. People broadly dissatisfied at the state of things probably voted Trump since he isn’t the incumbent.
Just how it works - voters don’t have to be rational.