Since the dawn of time, when any group has had the opportunity to takeover and dominate another group they have done it. Obviously if the subjugated group looks different to you then it makes it easier to recognise them and discriminate, but going back tot he earliest middle eastern empires, Chinese, African, South American, if one group can be topdog they make sure they are.
The British Empire is merely one of the latest dominant empires that has ceumbled. Our place was taken over, briefly, by the USA but now lies firmly in the hands of the Chinese, who started by invading and conquering Tibet and erasing its long Buddhist culture and are now working hard at ethnically cleansing the Uihgur. They are establishing their dominance in Africa by tieing African countries to deals that tie economic advance and loans to these countries tieing themselves tightly to China and its economic policies and the Chinese will prove far more oppressive and far more difficult to escape from than the British Empire and do far mor damage to these countries and their people.
By the way. Why are we not demanding reparations from Italians for all the damage and oppression meted out on Britain by the Romans?