Mind you, this infobox is manipulating facts too. They were 2000 people in Morocco and it took them only 300 years to become dominant demographic. They beat local population at reproduction because they enslave women and rape them, or they force 9 year old girls into marriage. If they can't find a wife or they are reaching their 30s without marriage, they turn to their families and breed with them instead. They always have an edge reproductively.