Hah! America is even more multiCULTuralist than Europe. I will say that our Muslims tend to a lot more behaved than yours (probably due to their lower demographics)- when they're not flying airplanes into skyscrapers, that is.
I got a theory about that:
In the US people are allowed self-defence. So muslims will get shot up in places like Texas when they start to jihad.
In Europe they got the guns and the large groups of jihadies to terrorize the people.