What's the difference between cocaine and a Jew? One is a white powder, the other is a black powder.
Are you making fun of holocaust victims?
Yeah, it's a funny joke. Don't you get it?
I just don't think it's right to make jokes about Jewish people dying in the Holocaust. It was a terrible period of time, and making light of it is offensive. It would be good to learn about how the Holocaust affected people, so you can understand why what you said was so inappropriate.