No, they are not, especially when they flee to Vegas from SoCal.
Here in Arizona, I find a lot of California refugees are unhappy about California but have no idea WHAT turned California into a rotten place to live. They just think California has a little too much government regulation, taxation, etc. They want California-Lite. Very different from REJECTING the failed policies in CA.
The folks I meet who have left California aren’t conservatives. Just moderate liberals.