Yes it is. Serious studies on penis size prove that there's no correlation between skin color and penis size. The reality is also that African American dudes are often in such material conditions that becoming a sex worker becomes an option when they're hung, the same way African American transwomen, and women, sometimes turn to prostitution because they come from deprived homes, did not go to school. etc... My penis could be considered porn material, but I'm white - I'm bigger than most men, statistically, whatever their origins might be, although, of course, some men are bigger than I am. But as a white man, I've been priviliged, I've been to nice schools, I am considered highly skilled by society. I've considered porn, but I knew that what it would entail: being déclassé. I would lose my social status. Men who are hung, and poor, and have nothing to lose, are more likely to accept being erotized, and exoticed.