gee, maybe because it unfairly labels every Muslim as a rioter? Why not call them black riots, or african riots?
Not really.. it only does if you choose to believe that. If I see that a group of American soldiers apparently mistreated a prisoner of war, I don't assume that all American soldiers do that. But to call them a group of white caucassian soldiers from the western world would be so incredibly vague as to not make it worth mentioning. A group of Muslims had a riot? It was a Muslim riot. That's not meant to be offensive, it's simply a fact to be stated.
My problem here, and probably Aldo's as well, is that those US soldiers were there
as US soldiers. It was their job, it was the whole reason for them to be there. In the riots, those people weren't there for religious reasons, or race reasons, but economic reasons. So those weren't Muslim riots, but just plain old riots sparked by economic neglect and a godawfull police policy.
As a thought experiment, let's say that right now, here in Groningen, a large group of the student populace rises up against the city council, because, eh, I dunno, they haven't got enough houses. We wouldn't call that agnostic, atheist, or Christian riots, would we? Student riots would be closer to the point, even though the great majority of protesters will be white, and I think 75% would call him or herself a Christian of various kinds. Still, not the great white riots of Groningen, but the student riots. Why? Because the reason they are protesting is for student housing.
Now, take that exact same group, and let them start a protest about the Dutch troops going to Uruzgan. Then it wouldn't be the student riots, but the anti war protests. Even if it is the exact same group.