I generally shrug racism off. I have to say though, that Chapman's attempt at humor wasn't even all that good. If you're trying to insult somebody, at least make it somewhat clever. What a half-assed attempt.
Seriously, give the man credit if he actually made a decent joke. But that crap wasn't even funny one bit. Racism isn't pleasant in any form or way. Add a bad joke about it and receive negativity, that's a for certain.