[Right Wing Professor]

The implication is that he believes in collective guilt (unless anti-Semitism has a different meaning that I'm not aware of).

Anti-semitism is prejudice against Jews, or actions resulting from that prejudice. Where does collective guilt come into it?

[inquest]

Is collective guilt not a form of prejudice?

Once again, all you have to do is trace the conversation. Sobran's accused of a certain "prejudice" with his use of the word "Jewish", so I raised the issue of a similar use of the word "Arab", suggesting that the accusation of prejudice would apply just the same in that case. Your response, essentially, was that there were "3000 reasons" why such prejudice would be appropriate in their case. In other words, collective guilt.