What does a Jew respond with when you ask them what's up? My relatives.
I don't feel comfortable with you telling jokes about Jewish people. What did you mean with this joke?
Ian Rodger wants to kill the Jews!
I don't know who Ian Rodger is, but it's not right to joke about killing Jewish people or what happened to them during the Holocaust. Telling jokes about them being killed is offensive to them and trivializes what tragedy of what happened during the Holocaust. I think watching a documentary about what happened at concentration camps would help you better sympathize with them.
Oh really? I'll watch a documentary about the holocaust and I'll think it's going to be pretty boring. In any case, I'm fine with ethnic jokes.
You may be fine with it, but people who experienced the Holocaust or any ethnicity you may make a joke in the future will not like what you're talking about and will end up being hurt with what you said, or offended. If I were you, try just doing lighthearted jokes that doesn't hurt or offend anyone.