That is an example of the joke being funny when teh n word is used. And yes, the aspect of the N word being racist would be central role for when it would be used in a joke. That guy did it in a hilarious way and I defend his use of it to answer your first comment.
What sort of “reasonable person” would find a white person telling jokes that use that word unless the joke criticized the word funny?
And then you provided me a joke (again, not from the 90s like you were talking about) which criticized the word. So I think you proved my point. Racist jokes aren't funny and neither are other bigoted jokes.
Your sentence is confusing, please rewrite if you are looking for a different answer.
And yes, racist and bigoted jokes are funny unless you are pearl clutcher. Racist against every group not just the ones you think we cant make jokes about (to respond to your next comment).