A lot of the black parents some of these people claim are black in america but considered biracial in other countries.
By this logic, Drake or Paula Patton's sons are black and can claim their mother or father's heritage as a reason why they can say ngga
Rashida Jones is light enough that white people assume she's anything other than mixed race. She gets roles that are clearly meant for white women, and most of the time her love interests and friends shes paired with in tv and movies are white.
Hollywood treats her as white, just like it treats Dwayne Johnson as an indigenous Samoan. It is what it is. The culture and those who have the power to control the narrative decides.