They did nothing to him, except that they didn't worship him. There was a lot of literature circulated before and after Hitler's birth blaming the Jews for everything but hoof and mouth disease, and every piece of writing was based on lies. Hitler wanted a scapegoat so he used the Jews as reason for Germany's defeat in World War 1.
The libelous writings were used by Hitler to justify his actions. The J.W. crowd just refused to follow in lock-step to his rantings so he made an example of them. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.