I would not call any German in WWII a hero. Sorry that is just not in the vocabulary.
That IS the right word.
He's a hero for abandoning the army risking capture and summary execution or the camps even where most traitors met their end.
That's pretty myopic. There were lots of heroic Germans who resented the dictatorship they suffered under.
Kurt Student? Not a hero! Surely you jest.
Nobody in their right mind likes the Nazi cause, but they had some darn fine fighting soldiers.
Read up on what Student's guys did at Eban Emael and Crete. Heroic stuff, regardless of the uniform.
Then, from my own lips: ~ I once attended a work associate's house warming party. There were three or four people there who'd been saved by Schindler. They showed me the serial numbers the Nazis tatooed on their wrists. My work associate's wife was, in fact, the first offspring of a couple Schindler had saved.
Schindler existed. The people he saved existed. When they bear witness it is first of Schindler's heroism.
It appears you've never heard of Dietrick Bonhoeffer either.
Hate, in this case a by-product of ignorance, will not bring peace into your world.
Then you are very ignorant on that issue.