I don't personally find getting insulted whether directly or indirectly (as a group) to be funny.
Maybe you find funny when people make disparaging jokes about women, or 'jokingly' call your kind whores, sluts, etc. I don't find it to be a 'joking' matter, particularly when the perpetrators have a history of slurs, stereotyping, sweeping generalizations, and similar attacks (I mean 'jokes').
In another thread I wrote that making sweeping attacks on Dominicans was no different from saying "----- are stupid", or "---- are greedy" . Only did it as a comparison, yet my statements were deleted and I got an infraction, simply for making the comparison.
I guess slurs are taken seriously as long as the victims are not us. Is that it?