Greece and Cyprus have historically had a lower murder rate than Israel. Does this mean all Jews are murderers? Just because Bernie Madoff was a crook does that make all Jews crooks?. Just because there were many communist Jews does it make all Jews communists? Just because there were Jewish Nazi collaborators does it make all Jews sympathetic to fascism?
As a Jew, you should be most sensitive of all to stereotypes. Stereotypes is what the Nazis used to dehumanize all Jews. Arabs are people too. Turks are people. Slavs are people. There are just some bad people mixed in with the good ones. You choose to be a bad person in your own group by supporting racist theocratic fanatics like Kahane.