I have. One contingency of those leaving are those upset at the liberal politics of the state. So they head elsewhere, and influence local politics in a conservative manner. I remember reading about another town in Idaho where that was happening (a lakeside town?)

California is massive, and it isn’t all SF and LA. You’d think that electing Schwarzenegger governor would have been a hint as to some political leanings! California has a sizeable rural community, which is typical Right wing.

http://cdn.abclocal.go.com/content/kfsn/images/cms/automatio...

California is a big a diverse place, and a lot more reflective of America than places that typically talk about how they’re “Real America.”

Horseshoe theory in action.

California is diverse and populous. There are enough far right voters in California that if they were to migrate en masse they would totally overwhelm their destination. They're also more likely to migrate, being the most irked by California's current one-party government. As a personal anecdote I happen to know a small businessman who moved from Fremont, California, to Oregon because those gosh darn overbearing regulators in Fremont wanted his employees to stop being severely injured. That's your basic right-wing migrant in a nutshell.

But anyway, just remember that population is very important. You might think New York is liberal but there are more Trump voters in New York City than there are total voters in Alabama.

Most of the Californians who went to Oregon in the 1980s lobbied for right wing policies in the new places they moved to (which created a number of issues), hence the fear of those disillusioned with California leaving and bringing destructive political views with them that could seriously harm wherever they move.

Edit: Downvoting me doesn't make the long term effects of what ex-Californians did to Eastern Oregon go away, small towns in Eastern Oregon are still hamstrung by policies and decisions implemented in that era by ex-Californians.