That was a Chris Rock joke. It was a dig at Will Smith. He told it right before going on a rail making fun of white males in this brave new world of comedy that isn't at other peoples' expense.
Yup, comedy shouldn't have a hard edge of what can be laughed about. Those folks are great (not familiar with Trevino though tbh) and even Jefferies and people as extreme as Jeselnik or Glaser have their place in comedy.
This is what I mean all the time when I say "that's just basketball"....Purdue can not buy a jumper and FDU throwing up garbage that just keeps going in..