[gottorf]

> the white supremacist views and actions that were perpetuated, emboldened, and exported by the reconstructionist south (not that the north was innocent, far from it, but the majority of the burden inarguably on the south)

Well, the south was the only place where there were any appreciable amounts of nonwhite people. "White supremacy" was just "the way things are" in the north, because they pretty much only had white people.

In 1900, decades after the end of the Civil War, the south was about one-third black; every other region (midwest, northeast, west) were less than 2% black.