I dont see this changing anytime soon. 2024, trumps looking likely, US continues getting shittier. Maybe Biden wins, US continues getting shittier but slower. 2028, either trump running again, or trump jr, or desantis, another big threat of far right fascism leaving progressive voters feeling pressured once again to put pushing for reform on hold and holding their nose for a well connected "safe" centrist candidate.
Three steps right or 6 steps right, we're still moving right - and democrats have already made sure to close off all roads to applying any leftward force. Either we reward them for moving further right or we vote for someone who doesn't suck and they say "see we have to move further right."
TLDR we have a singular party and corpos gonna corpo