The differences are regional. CA is overwhelmingly nutbag despite the lamentations from the ex-burbs and hinterland. They need to secede. The whole state.
When a state secedes the whole state secedes.
Were the left coast to succeed enmass the counties in WA and OR that are east of the cascades would immediately choose to form their own states, the same for Northern Cal.
VA/WV is the precedent.