Yes.
He thought it was such a clever thing to say that he posted it as its own thread.
When confronted with his comment, he had post 21 to say: "Going to be a snitch ? ... Van Vogt, a very PC Sci-Fi writer, was from Canada, they outlawed the right to bear arms- in all but name . Besides, most sci-fi these days is so leftwing and unAmerican, just like New York City, Hollywood, and Canada"
Piecing his comments together, it would appear that he thinks Jews are unAmerican, considering his 'Jew York City' comment and his comment quoted above about NYC being unAmerican.
Supid of him to generalize sci-fi too. Firefly, Space Above and Beyond and Battlestar Galactica and Deep Space 9 were NOT politically correct. Even less PC as you get into sci-fi novels.