The clear parallel to me is the small faction of progressive democrats that understand the only hope for a New America is to Tax Billionaires Into Oblivion T.B.I.O. Because democracy has eternally self-destructed by way of democratic freedoms allowing wealth to concentrate upward to fewer and fewer until a very few own everything and then of course everyone. The first task of a survivable democracy is to limit obscene wealth. The central question of democracy is how much wealth do We the People allow the individual to keep so as to limit their ability to corrupt and destroy democracy.
If the party we are relying on to save us fails then it will be far worse than Jim Crow; it will be showers and ovens.
Ice on the Moon 