The Persecution of the Jews

Reading and learning about the Holocaust is such a hard thing for me. The way that the Jews were persecuted and treated is unacceptable. I have a hard time imagining myself as a Nazi. I don't understand how people can be so evil and racist. And the horrible thing is that it was the majority of the German population that were degrading the Jews. It was not the government or army that were responsible for the raids on Kristallnacht, but rather the citizens. What happened to the so called belief that man is basically good? I believe that the Nazis are proof that the heart of man is basicly evil. And not only the Nazis, but the other countries. Where were they when the Jews were treated in such an inhumane fashion?