In São Paulo. for instance, one does not find blacks among the sales staff in one of the biggest bookstores - Livraria Cultura, owned by a Jew. Actually, I was surprised to see one there the other day, who seemed very professional to me. But he was not there when I returned days later. I have not seen him again.
A more overwhelming experiment: type 'beauty' in your google window search and... compare your results with the ones we just got - below:
AS FAR AS WE COULD GO, THE RESULTS WERE LIKE THE ABOVE. NO BLACK - AND ONLY WOMEN.