He seems more like a guy who never got past the emotional age of 13 than a racist. He probably really loved setting up a situation where he gets to rattle off an edgy, shocking round of nonsense in front of the whole country and giggle as people get offended. Your offense is probably playing into his pleasure more than the particular word he used.

I don’t know his reasoning and I have no idea what kind of person he is, but I’d rather do something uncomfortable than ask someone to do it.

https://www.youtube.com/watch?v=m5CX00i4uZE

probably just a pragmatic way to save time/$, need a pasty white guy to say N-word...Tarintino about as pasty white as it gets