The seeds were planted after Nixon resigned and it was decided to re-shape the media landscape and move the overton window rightwards in the 1970s, dismantling social democracy across the west and leading to a gradual reversal of the norms of governance in the US (see Newt Gingrich).
It's been gradual, slow and methodical. It has definitely accelerated but in retrospect the intent was there from the very beginning.
If you see it that way this is just a reversion to the mean.
You could say that was when things reverted back to "normal". The FDR social reconstruction and post WW2 economic boom were the exception, anomaly. But the Scandinavian countries seem to be doing alright. Sure, they have some big size problems (Sweden in particular) but daily life for the majority in those countries appears to be better than a lot of people in the Anglosphere.
That's not the redistricting Newsom wants for 2028, and I tend to agree that Dems have to play the game right now, but I'd really like to see them present some sort of story for why it's not going to happen again.
This makes me feel dread. I just don't see him dragging moderates in the middle of the country to the polls, or getting people in the leftist part of the Democratic Party to not "but but but" their way out of voting against fascism again.
Oh well.