The old joke in California Republican circles was “it’s the San Andreas’ fault” (with a purposeful placement of the apostrophe).
The observation being that if the San Andreas were to hurry up and continue its work of splitting open the Sea of Cortez on up to Tomales Bay, everything to the left would hold almost all of the Commies, and the rest of the state could get back to sanity.
It’s not quite that clean anymore, and such a big earthquake would probably damage the oyster beds in Tomales bay, which would be a true tragedy.
Anyway, there’s nothing in the constitution that says the state borders have to be contiguous, is there? (If that’s a requirement, Michigan’s in trouble). No need to toss the central coast into the trash along with San Fransicko and Los Angeles, as long as we’re daydreaming here.
Spoiler alert: after most of California falls into the sea, gold is discovered in the mountains and the whole thing starts up again.