Have you ever heard people complain about American imperialism? Yet, for all that imperial aggression, I still see no empire. Are Americans that incompetent? Heck, the United States itself isn’t even organized as a national government but a a federation. They can’t even bring their imperial ambitions to bear on the continental US.
As for the middle east, Amir Teheri of the New York Post shows a distinct absence of imperial settlement. Neither Islamic nations nor Islam, however seem likely to return the favor.