That's mostly just Trump. He's a complete moron, and tbh we will probably spend a decade or two undoing the stupid shit he has done — if we can. A lot of this bullshit we are stuck with until there is a big shakeup of the Supreme Court.

Absent Trump, however, mostly the efforts of both sides carry forward. Also, the world is a plate spinning on top of a pole. At any given moment, it threatens to topple, and we need parties to adjust the axis so everything keeps spinning. If it gets yanked in one direction, the wobble gets really bad and we risk the plate falling. One party really only pulls in one direction. Two parties really only pull back and forth. Multiple parties would do a much better job of finding the center where everything keeps spinning smoothly.