Writing an argument essay on Hitler being a great inspirational/motivational orator, HELP with minor detail?

Hitler. He was known as Hitler and spoke as Hitler. You might point out that he did NOT advocate the extermination of Jews in his speeches. He never openly did but it was clearly his goal and was alluded to in his book "Mein Kampf" He was known as a mesmerizing speaker and built his popularity on that. It is a legitimate subject for study.