The thing about stereotypes is that they are not just harmless props only to be used in comedy. They are common simplifications that we all use to some extent whether we like it or not. But some stereotypes are more harmful than others because they are used in very non-funny contexts to justify violence and oppression. And when you use those stereotypes in a funny-ha-ha way, you get some cheap laughs but at the same time you reproduce the stereotype and make it stronger. So a harmless "all jews are greedy and therefore it's funny that the jewish main character loses track of a conversation and starts to chase a dollar bill blowing down the street" gag [canned laughter] is the fertile ground where you plant plain antisemitic "jews are to greedy we need them out of our society" seeds.

But what do I know I'm just a PC SJW you know how we are, constantly bitching about "no more violence", incredibly naive because of course there will always be pogroms, "it's just human nature". [canned laughter]