You are making a point that red country is where the food is grown. But it goes way past that.
Lefty-land is typically a densely populated metropolitan area. They are completely dependent on the city water, sewer, elect grid, heat, as well as food and other necessities.
Cut the power grid and there goes the water & sewer. Block the highways and there goes the food and everything else.
This was something that became quite obvious in the Y2K era, where if the grid went down, so would large cities, while the self sufficient countryside would survive.
Where are water reservoirs located? Blue counties, or red counties?
Hmmmm ....
bump