Why was the Vatican supporting Nazism during WWII?

Question

http://www.geocities.com/tlthe5th/nazi.html

Answer 1

Hitler's Pope is a book published in 1999 by the Catholic ex-seminarian, historian, and journalist John Cornwell. It examines the actions of Pope Pius XII during the Nazi era and explores the charge that he assisted in the legitimization of Hitler's Nazi regime in Germany through the pursuit of a Reichskonkordat in 1933. It is critical of his conduct during the Second World War. The author has been praised for attempting to bring into the open the debate on the Catholic Church's relationship with the Nazis, but also accused of making unsubstantiated claims and ignoring positive evidence, such as the praise lavished on Pius XII by Jewish leaders during his lifetime.

However, in The Myth of Hitler's Pope: How Pope Pius XII Rescued Jews from the Nazis published in 2005, author Rabbi David G. Dalin presents documentation culled from Church and State archives throughout Europe.

It may be an open question.

Answer 2

Because Roman Catholics were traditionally opposed the Jews and Communism. Hitler was against both so he was a good guy in their eyes.

Answer 3

Because they both shared the "Jewish problem" school of thought.