It's foolish! If terrorists like BicMacs let's close all McDonaldses to not provide em food. If they read Koran like millions and millions people all over the world, let's ban it. If they have sex doggystyle let's do it only in classic pose. Where's the logic?

Maybe because it has no confirmation for its' theoretical basis. In countries and societies where all races are mixed there're no proof for racist's primitive postulates.

It's some kind of shelter for those fools who can't accept the world in its' diversity, multyformity and  fortuitousness many things that happen. Instead they're trying to build the whole world into some primitive schemes.

I can say exactly about civil wars in Syria or Iraq or Afganistan\Pakistan. I can say that some prototype of civil war is now going to start in the Ukraine. But "ongoing civil war in America" sounds really weird imho.