Yeah, if you look at it by population, you remember, nobody lives in that sea of red. (I used to think of it like Pakinstan's "Tribal Zones" where the Federal Government doesn't have much control, till someone pointed out, oh yeah, we do still have tribes that live out there.)
The good news is that fewer and fewer people live out there, more come to the cities where they're forced to interact with people who aren't white and christian, find out the Muslim at the liquor store is totally normal and doesn't want to murder them with his sharias. They also run into conmen and learn not to be so fucking gullible.
The map is taken from a slightly biased place, but it's a still from the interactive
here.. (YOu can spin it around and everything!)
2016 margin of victory by county by number of votes: