So. The California secession movement starts gathering petition signatures. I think this is an awesome idea. Not because I think it'll be good for California. No. California will turn into a socialist shithole, that can no longer feed on the rest of the union. But it will be GREAT for the USA. Without California's electoral votes, there will never be another Democratic president.
Regardless of such considerations, I will simply state that I generally defend the right of secession simply because I support the principle of it. With that in mind, I must observe that when right-wing activists quite recently suggested that Texas should secede (during Obama's administration), they were called traitors and racists.
A typical case of the left-wing "it's okay when we do it!"-mentality, then. But never mind that. Let them go ahead. Let them secede. So much the better for the rest of the USA. But before we start cheering for the secession of California, I think it's wise to reconsider the whole idea of the so-called "left coast". After all, it's not like all of California is left-wing. No; it's the coastal strip and the southern portion of the state. The northeastern part is solidly Republican. The left-wing part is just far more densely populated, so they force the entire state to always go Democratic. Considered in that way... California should be split up before any vote regarding secession takes place.
In the same way, sparsely populated Nevada is almost always forced to go left-wing, just because densely populated Las Vegas always goes that way. And the northeastern states of Washington and Oregon are also pulled to the left by their coastal cities, while the rural hinterland always votes Republican.
I propose the following, for the consideration of my American friends: that the borders of these four states are radically re-drawn, to create a Democrat-dominated "California" and "Oregon", and a Republican-dominated "Nevada" and "Washington". The two left-wing states should then be given the option to secede (or to join Canada and Mexico, respectively).
Even if the Democratic states stay with the union, this will at least free the Republican parts of the current states from Democratic overlordship, turning four Democratic states into two Democratic and two Republican states.
The map would look a bit as pictured here, with the Democratic states in shades of pink, and the Republican states in shades of yellow. I have based the border on multiple electoral maps, after figuring out which regions generally vote Democratic, and which regions generally vote Republican. I admit it's just a crude concept formulation, but it gets the idea across.