In short, the working class need to be better organized, class-conscious (IE aware that they are members of the working class and opposed to the capitalist class), and militant, and the repressive organs of the state need to be much weaker. Organization is trending up with things like increased unionization rates (though many of those unions are collaborationist and not revolutionary) and increased membership in revolutionary orgs like the PSL or even reformists like the DSA. Class consciousness is increasing naturally as the social contract that bought off the working class of the USA (and the rest of the imperial core) is torn up and people begin to look outside the status quo for alternatives. Likewise, militancy will come once people have nothing to lose, and as you say, the younger generations are well down the path, but the key element missing is the aforementioned organization.

Unfortunately, it's not all good news. This mass radicalization will be slowed, and worse, redirected towards fascism, by that omni-present multi-billion dollar propaganda network controlled by the capitalists. Further, any increases in worker organization will be met with increasingly brutal crackdowns by the cops, FBI, and other alphabet agencies. Ultimately I find it far more likely the US will descend into fascism; it would not be unreasonable to argue that it's already there. That said, we must still fight for the better tomorrow we know is possible.