In terms of the article, I think that the left treats everyone the way that the author describes them treating the Jews. No matter who you are, if they don't see you as one of them, they try to demonize you in everyone else's eyes so that any act of self-defense is seen as an act of aggression.
I also find the situation interesting in light of the left's support for hate crimes laws. They don't think anyone, Jewish or otherwise, should have to live in fear because of a racial or religious difference. If a Jewish person moved into an entirely Christian neighborhood and were bothered by the neighbors, they would want the neighbors punished. However, they have no sympathy for Israel even though the nation of Israel is basically dealing with a bunch of countries that just can't stand the fact that a Jewish nation exists in the "neighborhood."