According to the article, blacks are admitted at 12%, Hispanics at 13% and Asians at 20%. From other sources one can find that around 30% of those admitted are Jews. Total = 75%.
This means that white gentiles are admitted at the lowest rate of any group.
Of course, a lot of the roughly 25% white gentiles admitted are legacies. I suspect there are very, very few non-elite white gentiles admitted to Harvard. Very few indeed from the South. from working class families or conservative backgrounds.
25>20
25>13
25>12