So, to ask an old question:
Is this good for the Jews?
I’m of two minds.
On the one hand, whatever makes anti-Semites look ridiculous is good, and a Jewish anti-Semite is always good for a laugh.
On the other hand, remember Charlie Rangel’s deadly comment about George W. Bush: that he’d single-handedly destroyed the myth of white supremacy. If that loon had really turned out to be Jewish, it would have been much harder to maintain with a straight face the idea that Jews have some sort of genetic cognitive edge.
So on balance I’m glad to let the Aryans claim him.