The problem with doing this will be continual warfare as the Blue States will want us to support them.
It’s less about states and more about urban vs everybody else.
Think about it that way.
AND, the problem is?
Yes, it won't be painless. They will have their cartels and they'll be sending invaders our way for a hundred years or more. The entire Third World, plus China, will be on their side.
Few conservatives want to admit how bad it is, because actual hot war is the only path and winning it is the only good outcome. Who's up for a hot civil war? Almost nobody.