With all due respect, while the voting choice for Americans is between the hard-Right Democrats and the extreme-Right Republicans, nothing is going to change!

Given American culture (and there are some here in the UK who consider that phrase to be oxymoronic), any real Left-wing party will never gain traction. However, there may be a chance for a Centrist party, if sufficient work is done to make it happen and if a Centrist figure arises around which such a party can coalesce (Bernie Sanders, maybe?).

It is doable, but you have four years to do it, or face another Republican win in 2024. No time to waste!