You had said that it is good to laugh at or make fun of people when you yourself believe their claims are ridiculous. In my opinion, the world would be a better place without people who believe it is good to laugh at and make fun of others. We have all seen some of the horrible consequences that such behavior can have on others. Such behavior can often lead a person into feelings of despair, to the point that they may even become suicidal. Yet you say such behavior is good for humanity. I disagree. It is not good to mock others...not ever
I agree with Cephus here, there is value in mocking certain attitudes, ideas or behaviors.
I understand your side too, obviously. On the surface it seems obvious that people should not be mean spirited towards other people. Your vague example obviously refers to the bullying stories we hear, and who wouldn't agree with you when thinking of those kids of issues? "Live and let live, be nice to people," right? Seems obvious and hard to argue when you put it that simply without thinking it through.
But I strongly believe that each idea, belief, claim or behavior needs to be analyized on merit, and not all ideas, beliefs, attitudes or behaviors are worthy of praise or respect.
What do we do with an idea, belief, claim or behavior that is damaging in some way? Do we 'live and let live' and stay quiet, for fear of insulting the holder of such a belief? Suffering the damage done, simply to play nice-nice at all costs? I use the example of Christian Scientist's belief that they should not bring their sick children to the doctor, because God will heal them. Or the belief of the Westboro Baptist Church that God intentionally kills American soldiers because of the increasing acceptance of homosexuality in America.
Those beliefs shouldn't be mocked? We should stand aside and stay silent, in the face of beliefs like these that cause innocent children to die and/or foster misunderstanding and hatred between groups of different-minded people? WHY? If I don't mock these sorts of beliefs, how am I supposed to convince my children and others that these beliefs are wrong and damaging?
Some ideas, beliefs, attitudes or behaviors deserve to be, and should be, mocked. We don't have to accept every idea or belief just because someone holds it, or just because someone says it's part of their religion.