Theories

"We argue, instead, that Muslim anti-Americanism is predominantly a domestic, elite-led phenomenon that intensifies when there is greater competition between Islamist and secular-nationalist political factions within a country. Although more observant Muslims tend to be more anti-American, paradoxically the most anti-American countries are those in which Muslim populations are less religious overall, and thus more divided on the religious–secular issue dimension."  I will come back to this once I read the whole article but if the abstract smacks of such wild generalization that makes me desperate to see what kind of evidence they have marshaled. (thanks "Ibn Rushd")