Dennis Prager describes some of the trouble on campuses in the LA Times, When young Jews major in anti-Semitism (via Snapshots):

That seems correct to me. The idea that only the Jews of Palestine -- who worked hard to create a nation -- that their national aspirations alone in the world are uniquely demonic, are racist is by definition, is anti-Semitic. It is holding the Jews apart and divisive and insidious uniquely among nations. That is anti-Semitism. The fact that there are people with enough time on their hands to provide nuance and obfuscation and an intellectual veneer with a few chapters of text for their fellow travellers changes nothing.

There certainly may be an infinitely small minority of sincere anti-Zionists who are not themselves either anti-Semites or allowing themselves to be used for anti-Semitic purposes, but they are a small group indeed. Right now, many of those great bastions of leftist anti-racism and liberality, the universities, are cess-pit Judenhass incubators.