Good overview of California’s problems, from a British perspective.
Our politics are indeed polarized, as there is a looney left and looney right that are far from agreeing on anything.
What we can conclude, however, is that during this decline, the left has been in charge. They own the legislature, the media, the universities, the public employee unions, and defacto, the governor’s office.
All the puny Republicans have is Proposition 13 and the two-thirds requirement for a tax increase, both now under assault. Given the outflow of middle-class taxpayers and employers, there is little prospect for a change in our politics.