The Moors conquered Iberia, and Sicily, not the rest of southern Europe. And those were North Africans. Back when Rome was a thing, North Africa, along with Southern Europe, where THE Europe.
You can't unmake the original Europeans. Northern Europeans are the latter day fakers. Back in the day, they were just as European as sub-Saharans were North African/Moors. And those both are as Paleolithic, maybe Neolithic at most with some groups, as each other.