The Fixer philosophy

Why was the jewish people had all this haters in the old world before the world war 2 in Europe. I had this question for years in my mind. And I found simply that they were the minority and since at these times like the czarina empire or the third reich ruling time and other more were a dictatorship regims so the needed someone or something for the people to get angry and hate but not the government. So the jews are the minority that had presents in the world and have no political or economical power or real effect. That is why they were chosen to be sent to ghettos or get killed and separated from normal life. What brought this up was a movie it was made in the year 1968 called The Fixer. I had this small thought that it might be a message to the Russians and since the jews are people of stories they have always a good reason and a strong story telling everything the way they want . About the movie who finds it watch it. It is a good philosophical kind of a movie. It had this theme of what makes a hero isn't madness it is courage which i can't remember the real words in the movie but it was something like that or so