There is no doubt that the Israeli/Palestinian conflicts complicate US/Arab relationships even though it might not be the single cause. The reality and perception of the US being a benefactor and biggest supporter of Israel, in extension reflects on the US when it comes to the continued occupation of the WB as well the siege over Gaza. It is a complete different conversation weather this occupation and siege are just and serves Israel interests but there no denying it casts a shadow over US middle eastern policy in regard to the Arab world.
Mexico: Death toll 27 after truck hits religious procession (AP)
from the article: America's Mideast woes don't begin and end with Israel