Johnny's comment was *absolutely* not meant to be humorous. He is extremely interested in Judaism and he takes it very seriously.

You may notice that he lists "When Hitler Stole Pink Rabbit" as one of his favorite books. If you haven't read it, do! It's an autobiographical story about a young Jewish girl who fled Germany with her parents. It is a very interesting look at the build up to WWII from the point of view of a child.