Before and after he attacks the US - in Africa, Yemen and New York (9/11) he declared, over and over again, that the reasons are US presence in the Mideast, especially in Saudi Arabia, and the US western influence on the western world. Israel has nothing to do with it. Even if Israel will disappear tomorrow, the US will have to keep fighting in Iraq and Afghanistan. Obama said he will end the war, but today he knows better.
Donald Trump: Israeli settlement construction in West Bank should 'keep going' (Haaretz)
from the article: America's Mideast woes don't begin and end with Israel