Think Dominican Republic and Haiti on Hispaniola. That is what is going to happen in Jesusland or the Neo-confederacy. States with rational actors should be able to cobble together a nation that simultaneously decreases its population, increases its average IQ and recoups BILLIONS in financial "aid" that currently gets sucked up disproportionately by those who do not contribute in kind.
I am only concerned with denying nuclear weapons to these fools and drawing up a contiguous border to allow a split into 2 nations instead of 3. The Northeast, the Great Lakes and the Pacific coast are home to the majority of what I consider "sane" actors in this country (yes, I realize that even there we have many pockets of lunacy to deal with)... but they are also physically divided by geography and distance - but, so is Hawaii, and that is still part of he current USA, so it CAN work without a common border I guess...
I am pretty sure Canada would like to have a buffered border between itself and the lunatic fringe 'Muricans...so maybe a deal could be struck that would allow the Neo-confederacy to exist but a contiguous border of the Rational States of America could be maintained to run the length of the Canadian border and join up the NE and Great Lakes states to the Pacific.
At any rate, things have not looked this bad in America since the 1850's and what followed that mess is unforgettable but possibly baked into the cake at this point.