Can those states stop paying into the federal coffers along with their population? Can they take over all federal land in their state? Can they kick the military out and take those bases? Look at say Nevada. 90% + of the state is federal land. They'd have a massive increase in revenue selling all that off to private individuals and corporations. Arizona would get all the revenue from the Grand Canyon and about a half-dozen other national parks and monuments that are heavily used.
What would the Indian reservations do? Join the state or become separate nations entirely as these are almost all in red states...
I'd say this happens and the blue states are so fucked...