You are drawing false conclusions up and down this thread. Both of the following can be (and are) true: Appalachia is a nexus of white poverty (and industrial decay), and institutionalized racism has lingering effects through the present day. The fact that racism existed (and continues to exist in some ways) does not preclude white people from ever being poor. Just like how your roommates' forefathers
may have been discriminated against, but their parents managed to pay for their college. At the same time, your forefathers
may not have been discriminated against, but you did not end up with a nest egg to work from. Local exceptions do not mean that systemic issues can be dismissed offhandedly.
While the income distribution may be screwed, in part, because "politicians are bought too easily by corporations", how one could deny that institutionalized racism in the past has lingering effects on socioeconomic status for members of particular races into the present day is beyond me. You are pointing out real issues, but none of these issues mean that racism doesn't (or didn't) exist.
EDIT: Also, where are those people that make millions off of the discussion of racism? (Do you perhaps have Al Sharpton or Jesse Jackson in mind?) Even if there are some small number of people whose brand personally benefits from discussing racism, their existence does not erase the socioeconomic disparity between races (today) that stems, in part, from institutionalized racism of the past.