Generalizing all Black people as being African-American, when a black person may actually be from Jamaica for example.
Basing a generalization that someone is from Africa based on the colour of their skin.
Cop: You! African-American, stop or I will shoot!
Jamaican: I'm from Jamaica mon, ya ignorant fool.
Liberal: You can't call him "Black", he's an African-American!
Normal, sane, civilized, Person: How can you tell he is an American of African decent based on his skin colour without actually knowing the guy? isn't that an ignorant, sweeping generalization and basically politically correct racism?
Liberal: His skin colour is black and must therefore have ancestry from Africa! you Racist!