Ok, below you have a part of what is included in the meaning of the word respect:
due regard for the feelings, wishes, or rights of others.
"young people's lack of respect for their parents"
synonyms:
due regard · consideration. thoughtfulness, antentiveness, politeness, courtesy, civility, deference
As you clearly can see, included are thoughtfulness, politeness and courtesy. So, that makes me draw the conclusion that neither common courtesy, politeness nor thoughtfulness was given by Mr. Rock when he made his bad joke. So, if you do not think that is something that should be given to all, then there is naturally not any need to respect.
However, I will totally disrespect you in this case, and 100 % disregard what you believe about it. The reason is, that you apparently do not have a clue about the meaning of the word respect. ????