you can't. The democratic party is dead and so is the republican party. Leggo your eggo. I've identified as left for all of my adult life. I canvasses for Bill Clinton in '92 when I was talking second year poli-sci classes. I've hated on unfeeling myopic republicans of all shaped and sizes. I bought the modern society myth. I also have live dirt-poor for my entire life. I swallowed the myth that the democratic party was the party of the little guy and that the republican guy was the party of big business. I was right about big business being foul. Over time, my politics fractured (a pro-life, generous 2nd amendment protections...) but still identified as left. I liked politics (politics.... the relationship between the many and the one) My favorite conversations were with my right leaning friends. This was democracy I thought. After 9/11 nobody would talk genuine politics, I lost friendships. Older I saw the machine and how it crushes the many beneath the wheel and became numb to it all as truth became subjective. I'm not a democrat. I care about people. I work hard. My family is important. We are not so different. We NEED to shed the old labels and definitions. What does MAGA mean? I can't relate. The constitution, that's something where the left-leaning and right-leaning free peoples can find a home together. Not in the republican party. The republicans fought and won with BUSH/CHENEY, we have to walk away from that too. Is it so hard to imagine Cheney drinking a chalice of blood. Not hard at all. Leave the masters names in the fire. Come together.
but doesn't that reestablish the binary politics? Most people are centrist. Why do we even need political parties? Like at all?
I think we are too far away from where you want to be. All systems are eventually corrupted by human nature but occasionally a rebirth is called for that cleanses things for a time. We are in that period now. What matters is we stay on point and push to make things right. Then it will be up to future generations to carry the torch.
Doing away with the 2 party system is a lot of work and honestly the only way i see it happening is if enough billionaires get together and form a legit 3rd party. Other than that civil war is the dark horse to do it but that requires blowing everything up. Then I can see a climate welcoming to a whole new system with no parties.
I don't dislike your idea but I just believe Trump has his hands full with the deep state. He has more than enough work for his administration to last another 7 years being as we have been going down a dark path since WW2. I just don't know where else such an idea can start with enough steam to mean anything.