I'm southern, and southern white people love catfish, and every other soul food.
I've found that it's always been more acceptable to make fun of Asians for Asian things, but if you tried to do the same thing to other races, people would have their jaws hitting the floor.
My little girl, who is 1/4 Korean, came home the other day pulling her eyes slant and saying "you Chinese". Well, that was obviously learned. I asked where she learned that and she told me So&So in her class. So&So is an African American girl. She is also six, and doesn't understand that what she did was wrong. Neither did my little girl. I told her it was wrong and that it was making fun of a group of people, those that happen to look like her Grandma. I think she got it after I said that.
I was kind of wondering when the differences would start to present themselves. She's never noticed or given attention to people of different races before, and earlier in the year, she spoke about this boy in her class "with the brown skin". She didn't say it negatively at all, but as a matter-of-fact. I appreciated that. She only said it to describe who she was talking about as I had not learned everyone's names yet, but had seen them.
Oddly enough, my husband found some children's books while getting trees out of the attic at his mom's house this past weekend. One was on Thomas Jefferson. My little girl reads at a pretty decent level and was reading the book. It was intended for an older child. It spoke of slaves and "negroes". My husband was listening and it caught him off-guard. She stopped and asked what that meant. He explained it as "a group of people" and left it at that. He doesn't want to shelter her, but she's six, and he felt that it's too violent of a story for a six year old. It was violent.