The blue areas also correspond to the main concentrations of "gun violence" and general criminal activity.
Just like the UK. All of the muzzie enclaves are EXCLUSIVELY limited to the cities. You will not see muzzies in the countryside, especially not up north where numerous historical reenactment societies are active and hold spectacular medieval reenactments every year with real longbows. And out of everything going on in the UK so far at this moment, their 'flyover country' has not even responded yet. It is primarily a city thing right now. There are a lot of rugged elements dotting the moors and forests, not to mention almost all agricultural and food processing industries and the transport of these goods are in the rural areas. They can EASILY starve out the urban rot if they choose to. How they will respond as the situation evolves will be very interesting...