1) Hitler was a half-blood, he was half German and Jewish, yet he dispised all Jewish people when he himself was one. This is just like Voldemort because Voldemort hates all Muggles and non magical people, yet he is is a half muggle.

2) Both voldemort and Hitler had devoted followers for Voldemort he had the Death Eaters and for Hitler he had the S.S.

3)Both Voldemort and Hitler believed there ancestery were superior to other people. Voldemort came from the Gaunts which came from a direct line from Salizar Slythern whom himsefl hated nonmagical people. Hitler believed he was part of the master race.

4) Both Voldemort and Hitler have a symbol. Voldemort has the Death Eater sign which is a scull with a serpant coming out of its mouth. While Hitler had the Swastica.