California/Oregon is not the first succession movement in this Century. Texas has also had them.
I see a much better alternative - Follow the constitution, and stop voting for federal usurpation of states powers. Problem solved.
It's pretty obvious that the president is too big of a deal right now. It wasn't supposed to be this way. Ideally your state government would have a much bigger role in your life than federal.
Also, this map is stupid! And it would suck to be a landlocked country, but it wouldn't be an insurmountable obstacle.