A person who "exploits racism for political gain" is, in fact, a racist. A person who exploits nonwhite people for financial gain is a white supremacist - regardless of whether or not they "truly believe" that they're somehow superior. That belief was mere justification, not the central reason to travel across an ocean just to buy or kidnap people for cheap labor - and certainly not a reason to torture, kill, and rob people.
Sharpton, Jackson, Farrakhan, congressional black caucus?