If the USA wasn't supporting Israel, it would be a lot easier for us to be allied with countries like Iran. Right now they can't easily be our friends because we're their enemy's friend.
In fact even if Israel wants to help us, they can't. The political fallout from, for instance, accepting Israeli help in Iraq makes that untenable for us.
How cheap would it be to pull the plug on Israel? It wouldn't actually cost us money, we'd just have to stop giving money to a country that routinely conducts espionage and spying operations against us. One that gives us not a heck of a lot in return.
Want a scary thought? One of the big reasons why the USA doesn't do that is that the House of Saud doesn't want us to. Why not? Well the existence of Israel provides them a convenient rallying cry. Down with the Jews! Nice way to distract the populace from where the oil money (doesn't) go. We have other reasons, such as a powerful voting block of fundamentalist Christians who want to see Israel start WW III. But I suspect that this one is a big one.
Your job is therefore to be hated throughout the Middle East. You're doing a good job. Sometimes some of you die. Sometimes you kick around some unimportant countries as a result. But on the whole the Jews remain what you've been for the last thousand years - convenient scapegoats for those in power.
Cheers,
Ben