it’s an interesting phenomenon… the creation of narrative and ideology to achieve a goal, at the expense of conscience, and other people.
and there is always peer pressure momentum involved. to support the collective, and not question the goal.
but this kind of self hypnosis occurs to this day.
ironically, it halo frequently in the people who want to “undo the colonizers”. who really are not much different than they were, and are not much more than angry racists, with just another ideology that favors one group, and excludes another.