True to the OP's point: I don't really care what happens to the east/west coasts. These people have been trying to legislate my rights away for decades now, so I am very apathetic to their plights.
We're all in the same boat and we have learned the value of rowing together versus throwing others overboard. If that means sometimes you eat crow and other times you serve it up, so be it. I too wish there were more on the menu than crow, but that's why we have scientists: perhaps our grandchildren can eat lobster.
We've all been duped into believing we need a federal government to maintain what we have, and I very strongly believe we do not.
Shit, I would wager that whatever 'economic' distress balkanization would cause could quickly be recouped by the simple fact that we no longer have the feds taking 15-30% of our paychecks and then sending it over seas to eastern europe or israel.
Even balkanized countries have levels of governments. In the scenario you envision, the role of the federal government would pass to some other new entity and you'd still be paying taxes or worse.
Reason is, if you don't have some government then you cannot protect your property and yourself simultaneously. A local warlord or landowner or one from an adjacent state might take your land. A neighboring state might invade your state. Who would protect you? What rights would you have? What court system would you use to gain redress?
Just look at brexit.