i also hear that it’s fried chicken as a whole that’s more popular, however I work at a grocery store and I haven’t seen that much of a ratio of black people buying fried chicken.
I do only work at one store, and don’t even work in the self checkout though, so my data is probably biased.

I will say however, our store has little fried chicken bites about the size of a popped popcorn and it’s mostly children who eat them.