It's a combination of both the American people's deeply racist cultural heritage and the common Western stereotype of Muslims being inherently violent people. S

It's a combination of both the American people's deeply racist cultural heritage and the common Western stereotype of Muslims being inherently violent people. So in many Americans' minds, if they're fighting each other, that's just the kind of people they are, always fighting, and it's all fine and good because there's far too many of them anyway. If you think this kind of thinking has died out, then you have a very naive view of Americans.