*scratches head*

So your entire economy will exist on selling potatoes, and 82% of US GDP will still be situated on the coasts. The coasts will still be able to import food, and middle America will no longer be able to be reliant on federal taxes other than on their potatoes.

The coasts will be able to support our current budget for military spending, whereas the middle would essentially have to cut all funding to military just to have enough money to build a road let alone a tank.

I'm liking this idea more by the minute.