What a load of Communist old rot you are spewing. Pure leftist fiction. LOL at “the black Celts”. The indigenous population of England is made of Neolithic Agrarians, who are of Northern European descent.
As for the British Empire, they should be grateful for what we gave them. Railroads, science, education, trial by jury, parliamentary democracy. Now we’ve left the Empire behind, half the gits saved up the fare and followed us home. Though I don’t know why, they have their own country and the exact same things as we do.