That’s where pale white people come from, they killed dark white people across Europe as they spread
I honestly can’t tell if you’re trolling or just saying completely baseless stuff.
Viking raiders didn’t care about the colour of your skin, not to mention the English are visually just as light in tone. Saying it’s the root of white supremacy is baseless.
The Normans replaced the Britons who were darker
The Welsh are the only dark people left on the Isles and even they aren’t homogeneous in that anymore
I can’t even tell if you’re talking about Brittany or England. The Normans pushed out the Celtic bretons in Brittany but that has nothing to do with the isles where the West Germanic angles and Saxons pushed out the native Celtics. There the Normans just came up to rule.