How are those guys not treated as some hostile foreign power and have half their embassy staff expelled is beyond me.
General lack of countries with something even vaguely resembling representative government in the Middle East. Israel seems to only extend that sort of courtesy to a part of its citizenry, but when you remember that the "stable" countries in the region are all more-or-less absolute monarchies, it becomes obvious why the US is willing to at least work with Israel.
All most people know is the spin they've gotten from the media and politicians. Both tend to be very pro Israel in the US. That's changed a little recently, but not much.