Why does people keep thinking raven symone is biracial when she isnt?

are white people afraid to acknowledge the fact that black people can be light skinned without being mixed or what? raven even mentioned time and time again she is just black and nothing else. both her parents are black yet whites dont want to believe this..why do they keep assuming that all light skin blacks are... show more are white people afraid to acknowledge the fact that black people can be light skinned without being mixed or what? raven even mentioned time and time again she is just black and nothing else. both her parents are black yet whites dont want to believe this..why do they keep assuming that all light skin blacks are mixed?
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