Just want to add that historical British society has a pretty amazing, filigreed culture of bigotry that has clearly been perfected through centuries of refinement. I didn't know this until I had a product management job where I had to work directly with a decent-sized direct sales team, and we had an upper-class and a lower-class person on that account team. The British take things beyond skin color, or even the old 1900s notion of whether the Italians are "truly" white --- they've got their hierarchy of parentage calibrated down to the county.