To be fair, there are plenty of billionaires backing the dems too, they're just a bit more subtle about their intentions, but they are not pioneers of the working class.
Of course the dems getting in in 2024 mightve slowed the roll of fascism, but it would've just delayed it rather than solved any of the underlying issues. With the exception of some truly progressive members of the party, the dems are basically just there to uphold the status quo.