Yes, it's still a discussion about humour. A jew won't laugh about a joke like how many jews you can get into a car (won't post the answer due to the heat of this discussion now).
So I'm ok, you don't get this kind of humour, lot of people don't, so calm down.
Btw, the post about calling americans stupid is a running gag here too, but neither you or hustini (from whom I didn't expect it anyway) got this.