It's an attitude I've encountered with some Californians. I wouldn't call it a common one, since most Californians seem to be aware of their dependence on their neighbors for energy and water. But as for "kicking out" California, I'm not sure any such mechanism even exists in the Constitution. While the USA might not be a proper federation of states anymore, vestigial bits of the federation still exist, particularly when it comes to representation and self determination of states.

If a civil war or rebellion did break out I don't think it'd happen along state lines. The kind of power the states now wield actually depends on the existence of the union, so I don't see them wanting to destroy that relationship.

There is this: https://en.m.wikipedia.org/wiki/Jefferson_(proposed_Pacific_...

but they want to secede from existing states, not from the union

The fact that all of the different economic regions in CA have to answer to one shitty state government is absolutely mind boggling. Imaging the Boston-DC corridor being one state and how dysfunctional that would be.

california has the 6th largest gdp in the world... ahead of every country save 5(that's including the US). California is a juggernaut and just saying that it would be taking 10% of the US GDP is underselling it.

They wouldn't survive very long without water. You can't drink GDP.

what do you think desalination plants would do?

Probably not much, since California routinely can't even import enough electricity to power itself now.