That the people of Goethe, Beethoven and Kant (for example) could have descended into such barbarism is - on reflection - a frightening indictment of humanity.
In conclusion to my input to this thread, that some talented Germans such as Leni R. were willing to allow their gifts to be used to glorify a descent into such barbarism is, to me, totally inexcusable. Many talented Germans left that country in the 1930's rather than submit their gifts to advance the evil cause of Hitler and the Nazis. Leni R. chose to stay and benefit from doing so.
I have no respect for her and no reason to regard her work in any kind of positive light. There are limits - she crossed them.
How do you feel about von Karajan or Richard Strauss?