Well considering how the fledgling UN stepped in after WWII to create a country for the persecuted Jews all the while forgetting all of the Turks, Gypsies, Serbs, and other ethnic races also included in Hitler's genocide, there's more than just the middle east that hates Israel. The US was one of the largest supporters in the creation of Israel and has continued to support them through the various crises with its neighboring countries since WWII. Does anybody remember the 6 Day War?

Israel does have the complete support of the United States but their actions are largely looked down on by the UN. These wars nowadays are completely different than any kind of past military engagements since you have combatants that are not affiliated with any country that do not follow the Geneva conventions.