This is not the case. The man who did that was actually Santa, in a cunning disguise as the Austrian. He did this to be able to vent his unbridled hate for the Jews, while still being loved by most of the world.
During this time Hitler was actually ridding the world of the unspeakable evil, Superman, and after an epic battle, he defeated him, without the use of kryponite, or any similar element. Unfortunately his body was destroyed when Superman let out his final burst of power.
However, a canadian mechanic found his destoyed body, and replaced it with a robot form, resulting in what is now a powerful force for good, Super Mecha Hitler.
He is now a robot, known as Super Mecha Hitler, and is a force for good.
During his life he displayed boundless acts of love, charity, and courage. He was not in any way, shape or form a racist.