Anti-Semitism wasn't something special, it manifests itself in a special way. Racism against blacks, racism against whites is not something unique. It manifests itself in that way, but it's not unique. It's a form of thinking, a form of feeling, a form of almost inhuman reaction, or illogical human reaction, to fear. Some of them probably didn't even know why they hated.
People today are no different.
There are white racists and black racists. There are people who hate people of other religions. And there are people who are prejudiced against police officers. They'll take a few police officers' misdeeds, or the alleged misdeeds of a few officers, and they'll spread it out against the entire department or an entire unit. It's the same form of sick, illogical treatment that evokes an earlier stage of human development than where we are now and where we want to go to.