There are two different basic forms of American anti-Semite.

Type A, who believes that Jews are “right-wing neo-con Zionazis.”
and
Type B, who believes that Jews are “left-wing Bolshevik money-grubbing Kazar commies.”

(Note how they cancel each other out.)

This guy turned out to be the Type B, which used to be the dominant form, but which is now surpassed by Type A in sheer numbers. But there are still plenty of these old-school Jew-haters around, as this incident proves.