quote “Raiders from the steppes swept in and killed the men and took the women and supplanted the existing culture, probably an agrarian culture”
yep, my thoughts exactly. The raiders were all from a common male lineage, swept in and killed all the men, and took the women for wives.
Where are my reparations?
Not sure who would pay you reparations since you are probably descended from those men! (You could seek reparations from North Africans for their incessant slaving raids in the Levant from 660 to 1450 or so! Good luck!)