How very judgemental of you. That's racial profiling. Funny thing is that I have an American Jewish friend who told me years ago to never do any business with Israeli Jews, because they will and I quote "screw you over since you're not Jewish". As for knowing little about the history, I literally lived 100 meters from a detention center where people were kept before being put on the train to Poland. 2 of my great-grandfathers fought in WW2. I'm pretty well-rounded when it comes to history, always been one of my bigger interests.