Dear Sofia,
is it allowed to make jokes about a minority, like homosexuals? But some of the best jokes of Monty Python's Flying Circus are jokes about poofters (or about homophobia), and can Monty Python be wrong? Certainly not.
We may divide humour into different categories; one of the more interesting categories is the humour of the absurd. To function, it is important that the absurd manner of association and construction is not too much restricted by censorship, similair maybe to the automatic writing of the Surrealists. The humour of the absurd can take any direction, what means that it suddenly may attack some groups we think to be protected from attacking.
As I know, your oppinions on this point differ: you think, I think, nobody should be hurt without deserving it. But who knows who deserves to be laughed off? The point of the absurd humour is, I think, finally, that the whole world is absurd. And there are some reasons to believe so. So maybe anybody taking himself serious is ridiculous.
Regarding the world, one sometimes have the feeling of jamais vue: all is strange and alien; why are things as they are? Why are there things at all? Why is there anything at all? Funny thing.

Yours,
John