The American political system is just a riff on a Kakistocracy set up for slavers and genocidal settler landowners. It cannot be reformed into an expression of the people's will. Not just because of its legacy institutions, but because the actual ruling class - capitalists - will use the myriad avenues by which they control life and consciousness to subvert it, and they have the advantage in this system unless we organize and spread consciousness. Only an organized anti-capitalist movement can deliver the needed changes.