You can't convince a hotep.Arabia has a deep history. There were Saharan people that ventured into Arabia in the Neolithic, IMO, but the bulk were probably close to what you see today, a mix of Neolithic Near Eastern and Natufian types with higher Iranian-like influence on parts of the Eastern Coast. Arabians can come very dark with close to no African DNA. But African DNA existed as well for many different reasons, due to ancient migration, trade, slavery, etc., which constituted always a minority but a marked demographic that eventually assimilated into the tribal confederates that existed throughout the region.