If I don't believe in YOUR beliefs, I have no obligation to observe them and, in a polite society, I have no need to mock them -- although in a free society, I could if I wanted to.
If I do not believe as you do, you have no right to enforce your beliefs on me and should have no expectation that I would respect your beliefs. Why should you care about how I believe or act unless you are unsure of your own convicitons or are actually threatened (as in I'm going to hurt you) by my unbelief?
An most importantly, if I do share your belief and then violate it (perhaps by murdering people in the name of your belief), then you should be angry with me and you should correct and discipline me. You should renounce me. You should hold me accountable as the criminal I am. You should turn me over to the civil or religious authorities.
Unless you take that responsibility for your beliefs, STFU.