I would welcome California especially since northern California ia the southern tip of Cascadia. But that all would have to be up to them. I now of people in the Great Lakes area too who want out as well as people in Arizona.

Buy? buy what? the way i see it the US American government and the red states owe us for all the money and lives we sent to build the current armies. You owe us not the other way around. The "red states" have been welfare states or third world states within a federal system for decades and seeing them deal with their race issues, lack of education, poverty and hurricanes on their own while the world watches would be revenge enough.