First of all, who gives a shit what groups he belong to? He was a nutcase. And the left tells us again and again that we shouldn't judge groups by the actions of their most radical members. The only response to them should be to point out their hypocrisy.

Second, this does fit a crazy theory I have about jews. I don't think there is a grand jewish conspiracy or anything like that. For one thing it's already well established jews are severely inbred and have a much higher rates of mental illness. Which this shooter clearly had.

But also I think they have a personality type that makes them much more likely to join radical political movements. Look how many of the notable communists were jewish. Today communism is basically dead so they are way overrepresented in stuff like feminism (I had a similar image to that one for feminists but I can't find it.) I have a study that shows jews have maybe up to a standard deviation or more higher "openness" than non jews. Which is a personality trait no one really understands, but correlates with political views very well. And is highly heritable.

Centuries ago, Europeans that had similar personality types probably joined religion and became celibate monks and priests. And bred those traits out of the white population. Whereas jewish rabbis had large families.