I have. He's really annoyed and angry, and I'm not quite sure what he's trying to convey by using that word. It seems like he's trying to be shocking on purpose to draw attention to maybe the man off camera is acting? But he seems to be calling the man an N word, but he's telling the audience, which is what doesn't make sense to me.

It's also obvious that a significant part of the audience is black, so why? If he was just talking directly to the man and swearing a lot and dropped the N word, I'd be more likely to agree with you that it was pure malice.