Your comedy might not be my comedy. I recall a lot of fuss about a French comedian who was going to perform in HK.
There is no global standard for what differentiates comedy from just insults that only a certain group find funny. And that is where the problem begins.... Yo mama jokes may be funny to some, may not be funny to others.. the list goes on.
So, it is ok to insult, berate and verbally abuse someone? Many might say that is free speech they're all verbal arts...