I have a question for Rabbi's?

There is a boy at school whom is Jewish and he isn't Very nice or polite to The Muslim and Christian kids at our school. He mocks are religions and calls us prejudice toward him? When we clearly are nothing but trying to be respectful toward him to keep the peace . I had asked a question about this earlier and people on here said that it was ok for him to make fun of me and my friend for being christian but it wasn't ok for us to defend our self's in an argument because then we would be in the wrong ? I wanted to know is it really ok for the Jewish to ridicule other individuals of a different faith then you?