I'm sorry you're so utterly clueless, go look at the map again!
Where you see red counties, those are Trump supporting conservatives.
Where you see blue, those are Leftist Democrats.
How many all red or all blue states do you see, North or South?
Almost none, what you see is that big cities plus a few rural areas are "blue" Leftist Democrats, while the vast majority of rural or suburban counties are more conservative "red" Republicans.
It has nothing -- zero, zip, nada -- to do with "North vs. South" and everything to do with big cities versus everyone else.
Where you see red is mostly low population rural counties....means absolutely nothing. If that map was truly representative of the voters we would have never lost an election!!!!