If the Wingnuts in your state managed to vote to secede, what would you do?

I've been thinking about this for a while.

Given the latest clearly blatant attempts at voter suppression in many red states, I expect that these will be challenged successfully in the courts - by all indications they would not stand up to any reasonable judicial scrutiny.

If that turns out to be the case, I present what I see as a hypothetical with all too much chance of happening - the state legislatures vote to secede, and the governor signs that into law.

What then? I'd prefer to not see any state actually secede - most states are basically purple to some degree or another - but I think that the GQP basically believes that they and only they have any actual political authority in this country.

Given that, what happens next?