Sesecession yes, Civil War no. The Red State wienies don’t have the gumption to fight.
No fight necessary. All that's needed is to pass Articles of Secession in one of more state legislatures, and it's done.
This isn't 1861. Americans no longer have the stomach to murder millions of their fellow citizens over the purely political question of union.
Secession is a valid option to weaken the Federal parasite class.
However, looking across our Republic, I can't see one Governor who has a Warrior mindset in the cause of Liberty.
The political class of both parties are quickly marching us towards rabid Socialism.