It's tricky because there are a lot of dangerous cultures throughout history that we romanticize because the imagery was cool. Is it ok to use imagery from the Vikings or the Samurais? They were also murderers.
I think the question should always be, can real world harm come from this? When it comes to Vikings and Samurais, those cultures are so far removed from the modern day, that I can't imagine that imagery encouraging anyone to actually engage in violent acts. Whereas with Nazism, the original Nazis are so recent that we still have Holocaust survivors alive today, plus there are tons of Neo-Nazis who are actually fighting to rebuild Nazi Germany. Using nazi imagery in a chopper gang actually can help to normalize a dangerous ideology that is already on the rise.
So yeah, that's my view. It's ok to like nazi imagery, but during this point in history, we need to be aware of the real world implications of Nazism.
