Pink's calling out of various minorities in the audience (that one looks Jewish, that one's a coon, etc.) is a reference to the meetings of the British Union of Fascists before World War II. in these meetings, the speakers would rant about how foreigners, minorities and socialists were destroying Britain. Near the end of his speech, he would identify members of various minorities in the crowd, who would immediately be roughed up by the blackshirts (similar to Hitler's brownshirts) and thrown out onto the sidewalk.
Bill - Erie, PA, for above 2