Pretty sickening! My only criticism would be that the writer has still not fully grasped that even the underlying assumptions of those in the grips of that deranged mindset are erroneous. They have accepted an "historic" narrative, which contains much that is misleading; including the fact that it ignores that a part of the problem in contemporary Black communities--and including those in the time frames that the writer refers to--is a direct result of that deranged mindset.
The greatest victims, today, of Obama's war on the Police, for example, are the millions of law abiding Black Americans, who want the Police to protect them against the lawless, hoodlum element; but are cowed into silence.
Leaders like Sheriff Clarke in Milwaukee understand this, but they are largely ignored by the Obama adoring Leftist mass media & their academic mentors.