Question

There are a number of derogatory terms in the united states for members of minority groups who have assimilated. "oreo, "twinkie," and "coconut" are all rude terms for people who are one color on the outside but "white on the inside" - that is people whose behavior does not match their skin color. what term embodies these insultes?

Answer 1

The term that embodies these insults is identity challenges. 
These people are living as minorities in areas where there are predominantly people who don't have the same skin color as they do. Thus, in order for them not to stand out from the crowd, they start acting the same way as the majority of the people do, even though it may not suit their skin color at all. Which is why there are these derogatory terms to describe them, unfortunately. 

Answer 2

The term that embodies these insults is 'identity challenges'.