Once Trump is in the WH and the illegals are gradually removed - and the criminal ones not gradually - and “sanctuary cities” lose their fed $$, and the border laws and other laws are actually enforced - CA will be quite different.
As soon as California secedes, it will be broken up into at least 4 new states which will join the federal union. Then many of the counties close to the newly seceded state such as those close to Los Angeles, San Francisco, maybe San Jose, and maybe San Diego will join the new non - California states, and that will leave about 10 million In the newly seceded former State of California(i.e. LA,SF,SD,SJ,) and there will be lots of coast that will go with the new non-California states...Let new California grow their own food, and get their own water, and generate their own power... Enforce strict borders on them, and watch them infight, have their own internal civil “war” and finally wither and die.