What's the difference between pizza and Jews?  Pizza doesn't scream when it goes in the oven.
Why did you feel the need to tell me that?
Because this is what goes through my mind every time I see Jews
Joking about Jewish people going into ovens, or the Holocaust in general, isn't a very nice thing to do. These kinds of jokes are antisemitic, and can lead to discrimination against Jewish people. I think it would be great if you learned more about how awful the Holocaust was, because you'd feel more empathy toward the people affected by it.