So far, genealogical research has identified no Jews in my direct lines of descent. However, I’ve been around long enough to “wear out my Biblical threescore and ten warranty”, and yet — even as a kid — I have never understood why some folks are anti-Semitic. I must be dense; I just do not get it...
In Europe it dates back to when Christianity became a state religion. In prior historical periods Israel was always a difficult area to control when it was conquered.
Also, in Europe because Jews were discriminated against and kept out of the trades they were further isolated from the population as a whole. What I'm trying to figure out is why the ongoing hatred. They suffered terribly during WWII and their population was decimated. IOW, they are not a noticeable portion of the population.