None of the black people I know are insulted by the fried chicken. It has very little prejudicial or racist intent and is purely a stereotype thing, and not even an insulting stereotype. To equate it with throwing a banana which is actually a racist insult, is to belittle the importance and significance of the latter.
Almost every single race has a stereotype associated with them, some more insulting than others, some not insulting at all. Friend chicken is a very benign stereotype.
Though as a black person yourself, I'm not really in position to tell you what should or should not offend you, I'm merely speaking from my own experience.