Oh bullshit. 85% of the economy are those gigantic, very blue cities. The rural areas are the takers compared to the cities makers. The rural areas could throw a little hissy fit if they like, but the only ones who will get hurt are themselves (particularly if the cities, and the blue states in general) cut them off.
Fuck them. Let them burn. They voted to shoot themselves in the head (like Kansas and Louisiana both did), so let’s not get in the way of their bullet.