At the dawn of recorded history, the Middle East was at war.
“..dawn of recorded history, the Middle East was at war...”
Cain and Abel. It is a result of original sin (man’s fallen nature) and the scenario repeats in all conflicts down through history. This is precisely why a socialist atheist human U(dys)topia will not succeed. Humans can individually win over their own moral shortcomings by the use of their own free willpower - the collective can’t do it because it is impossible.