This is a significant discussion. We (as a nation) can't move forward if we don't know where we have been.

If you look at at timeline of the incidents of lynchings of Black citizens and a timeline of the erection of monuments to Confederate leaders there's a significant overlap. I'm not saying that one CAUSES the other, just that there's a consistent strategy of rewriting history and re-invoking terror / intimidation.

You also may want to look at the Dunning School of historical revisionism. One of my high school teachers in the 1960's (just as our local school system was being integrated) recommended The Tragic Era by Claude Bowers.

Overview of Dunning School: https://en.wikipedia.org/wiki/Dunning_School

Detailed exhibit from a student at Columbia University (click on links at right): https://slaveryexhibits.ctl.columbia.edu/exhibits/show/williamdunning