Unfortunately I don’t think that that’s possible. MAGA was able to take over the Republican party because they still fundamentally defend the interest of capital. It’s why you still have career Republicans that criticized MAGA as a part of MAGA today.
The Democrats refuse to move left because leftist are anti capitalist and pro worker. They will never move that way because it is against their class interest and against the class interest of their donors. The most they will do is “allow” some slightly progressive voices like AOC into the party at “tokens”. But they will never platform them or allow them to grow.
The Democrats will gladly lose elections if it prevents anyone left of Reagan from winning.
You can’t argue with someone that just keeps rambling in 10 different directions at once. You are someone without a compass. You are very understandably alienated and frustrated by the world that we live in. But instead of finding guidance through reading theory or organizing with real people you’ve spent your days listening to politics and trying to form your own dillusional world view. You’ve convinced yourself that “no one gets it” but when showed that there are people that get it and there are people that are organizing you instead tried to vote shame them so you can stay in your comfort zone.
Your political views are not intelligent. They are nihilism. That’s it. There is no reason to argue with a nihilist.