The Far North was always ignored and if they made a big enough fuss they probably could have gotten out years ago (Pearl Harbor got in the way the last time).
Then the problem was that San Francisco and Los Angeles couldn't stand to be in the same state -- and there were all those water issues.
But the Central Valley and the coast in between SF and LA probably didn't want to be thrown in with either megalopolis either.
Now San Jose doesn't want to knuckle under to San Francisco or San Diego to Los Angeles. Ergo, six states.
But I can't see this going anywhere, even if a balance between political parties could be achieved. Every part of the country has its own dramas, and the rest of the country isn't going to let California's (or Texas's) take center stage.
If the earlier proposal to make a new state out of the 7 northern RED counties were to happen the influx of people wanting to live there would create a roaring economy in no time.