That's fine. It's funny to us. Let us enjoy ourselves. Personally, I'm fully capable of laughing about a group of people that did some rather ridiculous things 60 years ago. Besides being evil and killing millions, they are also a great source of comical villains and something the admins are CONSTANTLY being called whenever we do anything.
Again, as I said: lighten up. Welcome to the internet. If you think this is offensive, when it clearly is only joking, you should try the people who are actually intentionally trying to offend you.