Well this week has made a statement. Between the campus police riots that have been going on nationwide and the vilification of the students involved, Israel has tacitly been declared as the third rail of American politics. And since what America says goes, that means they can do what they want.
This is unsustainable, though. The unipolar world ushered in by the fall of the Soviet Union is already dying. China and Russia are building their influence. And while the US will remain influential for years to come, our pro-I politicians aren't winning hearts and minds. Certainly not among the young.
Thus far the Israeli establishment has been in denial about all this, or alternately, acting in a blind panic because they can't deal with it. But at some point they'll have to.