They have opportunity after opportunity after opportunity to separate themselves from the nutters, and still, there are more than a few guys who go "Why you gotta talk 'bout me like that?"
Italian American's have it tough, too. Whaddaya gonna do? Maybe after like 17 generations they can both defeat the negative stereotypes. At least the Italians are funny and contribute great restarants and movies! If American Muslims want our respect they can feel free to earn it, the hard way. Try enlisting in the military, for example, and help us exterminate Islamonuts. Now there's a thought...