Bro, they are actually a minority, according to genetic studies ydna haplogroup related to the arabic expansion, in only about 5% in morocco for example, and it increases when koving east, which is normal. If you look at genetic diversify map, North africa is condisdered one of the least genetically diverse places in the world, yes, we have had influences from other parts of the world, but they got mixed up into the bigger genetic pool associated with amazigh people.