Hitler set himself up as god. All power and authority was his. His own alpha and omega. Love, forgiveness, compassion are the antithesis of everything that Hitler and the Nazis stood for. The only reason that Christians follow Jesus is that He is the promised JEWISH Messiah. And Himself a Jew to boot.
NO way Hitler was a Christian.
Hitler was baptized into the Roman Catholic Church as a baby, he may have been confirmed when he was older. As an adult, he would go to churches for food when he lived as a tramp in Vienna. Otherwise, he did not attend services in any way. Certainly not once he became Chancellor. His actions and the actions of the government he led make clear Hitler wasn’t a believer. The SS attacked churches both in Germany and in occupied territories. The National Reich Church sought to destroy Christian theology and replace it with National Socialist ideology. The Gestapo arrested and murdered thousands of protestant pastors and church members, to say nothing of Roman priests.
After he got rid of the “Saturday” people, he was going to turn his attention to the “Sunday” people.