First off, politically correct, you won't, or at least shouldn't, see any forms out there asking if you're 'white'. They usually stick to terms like Caucasian, just as we would refer to black people as African American. Furthermore, that is only used in America, it's just you see dumbass people call any black person African American, no matter where they are from. If they are black from the UK for example, they are politically called 'British Black', 'Black British', or 'African British'. The term is usually their decent followed by their actual place of birth, so if they were born in another country like China, but they have African decent, they are 'African Chinese'. Lastly, who says white people are called just American? Whoever told you that is by far a bigger dumbass than those who call black people world wide African American.
EDIT: I noticed your Uncle Ruckus and Stephen (Samuel Jackson's character in Django), both were characters portrayed as being prejudice and racist on their own culture. Your question was regarding the inequality in terms and/or titles given (even though your query was inaccurate) from blacks to whites, showing you were standing up for African culture in general, to which neither Uncle Ruckes nor Stephen would have done. With that in mind, I would not consider you similar to either character at all, in the least. Furthermore, I hope you understand Boondocks, a show popular among many races, but seems to be more popular among the black community more so, is a show that was initially, and maintained that point of view all the way through, of poking at and making fun of the black community. Funny show none-the-less.