Goings - like all quadroons - is a white who happens to have a black
grandparent. The political climate of the time is such that it is
advantageous for them to make something of the dark quarter of their
ancestry, but knowing nothing of him would you be alarmed if he moved
in next door or your daughter brought him home?
Perhaps it is a historic legacy of the USA 'one drop' mentality. In
England, the soccer player Ryan Giggs is never considered anything
other than white even though it is well known that his father was a
mixed-race rugby player.
The caste system may needs Goings talent to come from 25% of his genes,
just like it has for the rare 'black' swimmers and hockey players, but
he patently isn't a brother. Perhaps Caste Football could celebrate his
success, after all, he is three times more white than the sainted Tiger
is 'black'.