First, "Everyone's a Little Bit Racist" from Avenue Q, suggested by aliana1.
Which brings me to my first "100 things" quote.
Gary: Now there was a fine upstanding black man!
Gary: Jesus Christ.
Kate: But, Gary, Jesus was white.
Gary: No, Jesus was black.
Kate: No, Jesus was white.
Gary: No I'm pretty sure that Jesus was black --
Princeton: Guys, guys... Jesus was Jewish!
As if that solves the question! (Remember the airlift of Jewish Ethiopians back in the '80s?) It's kind of like trying to sort out whether the pharaohs were white or black because they were Egyptian: it just bumps the issue to a different question. The fact that anyone would think that cleared up the issue totally cracked me up...
Also, what post on tongue-in-cheek racial humor would be complete without Randy Newman?