Not really, no. I mean, when the majority of the world's population agrees on certain "rules" (and they do), then violating those rules can be said to be "bad".
If you were to stack up the people on Earth who are aganst say, murder for profit, and those who aren't, you would see that there is no country who's population condones it by a majority. Nations have to play by the rules that their citizens endorse, and that means they are not free to do whatever they want. For all of American's past and future mistakes, I am fairly certain that were the people to be given a direct choice, with sufficient information to understand the situation, they would choose differently, that is to say they would choose not to perpetrate those crimes. Same for any country really, though not for any time. Thats the "problem of democracy", the people if left to their own devices would almost always choose differently than the politicians who are profiting from it. So, the people must not be allowed to have democracy, or atleast not real democracy, because they would just ruin it all.
As for the Jews, from what I know about history they were used as scapegoats due to their general wealth and well-being compared to other Germans. And yes, they were also regarded as untermenschen, but the two are not mutually exlusive.