Nazis burn in hell that is evil and cruel of you. Just because the killed of thousands of jews and tried to take over the world didn't mean they where all bad. Is Alexander the Great viewed as evil. No and he took over the whole known world. What about Napoleon. He again tried to take over the world and again not so evil. And in WW2 us Americans bombed the shit out of Japan. But nope still not evil enough. Hitler with his jewish fetish was the evil one. No one was really good in WW2.
International law dictates that no officer, no matter what the rank, has to obey an immoral order. This law was in effect before WW2. They did not have to obey any of the orders Hitler gave them, but they did. They performed evil experiments on prisoners and slaughtered countless people. They glorified Hitler despite the fact he was evil.
Alexander and Napolean did take over the known world, but they did not
order the torture and slaughter of thousands of defenseless people.