Bill Maher wasn't really making fun of racism, as long as we're pointing things out. The joke was just that he's not tough enough to be outdoors, and he used a slur to make it.

This was in the context of Maher and Ben Sasse commiserating about adults dressing up for Halloween and Sasse suggesting that Maher come out to Nebraska, because they don't do that out there apparently.

I watched this happen, I gotta share just how bad it was. Especially in the context of this author fumbling the facts this badly.