If we did have this "civil war"...

[Absentee Voting Ghost of Ruin]

We're not fifty Red or Blue states. We're a bunch of shades-of-purple states where the Red Party or the Blue Party has big enough edge to control the government. Splitting up means leaving people we agree with to be oppressed by "the other guys" without any federal government to ameliorate the whims of the ruling faction.  And why stop at state lines? Why not let counties leave?

And our fifty states aren't all equal. Only a tiny handful "pull their weight" financially in the national budget. Who's going to foot the bills currently paid by California, New York and New Jersey (via DC) in Mississippi or Kentucky? Not that it's all one-sided, even if a handful of Blue states are the net contributors. As just one example, California doesn't just get its water from the ocean - what happens to water compacts if the US dissolves? 

And what makes you think Republicans will stop being lying, death-worshiping jerks just because they live in a newly independent state? You really think they're going to shoulder the blame for their failures because there's no federal government to blame? You think they're not going to point fingers at their neighbors and scream, just like they do now? All we're buying with a breakup of the US is a different sort of conflict, not a solution.

But hey, I don't want to just pick on Republicans (although I think they deserve everything I can heap on them, and more besides). A breakup of the US isn't going to magically solve all the very real societal problems Clinton and Obama ignored, starting with the regulatory capture of our government and the gross wealth inequality that the Democrats pay lip service to but never seem willing or able to do anything about.

And speaking of that, isn't it nice and convenient for the billionaire-class (and their lackeys) that half the activists in the country are busy hating the other half of the activists? Good thing Trump came along to polarize everyone, and that the flames keep getting fanned on massive issues like CRT, election chicanery and trans people, otherwise a whole lot of angry people might look to DC and start asking our elected representatives why can't the United States function like a first world country?