I just moved to California so I don't have too much of a personal opinion yet but that sounds like a bold claim. From what I've seen, people over the age of 30 seem split on whether or not it's an improvement. You look at mismanaged cities like SF where there's insane homeless budgets but very little action and results and wonder if the monopoly on political power has made politicians here complacent.
Then there's the whole NIMBY thing. There's a whole lot of Democrats (arguably DINO's) that are very anti-building. They run under the Democrat banner so they'll probably keep getting re-elected. Obviously a solution here is people getting involved in local party politics to primary these candidates out, but that sounds like a miracle that'll happen as soon as we get nuclear fusion power plants.
The whole thing makes me wish 3rd party candidates were more viable in the US. This flip-flopping really sucks and creates a lot of chaos but political monopolies, from what I've seen, are able to hide mismanagement and bad policies really well. (Texas is probably a similar example from the other spectrum.)