Maybe so, but their saga continues. Repeatedly, police continue to apply undue force against blacks much more so than against whites, as videos continue to chronicle, and a fair proportion of those rogue cops continue to get away with it. (Not all cops, of course, but enough to make it very troubling.)
Peer-on-peer violence is bad enough. But unjustified violence perpetrated by authorities is quite another. It is much more destabilizing. Imagine yourself being singled out for "extra special treatment" because of your skin color. Seriously, walk in those moccasins for a mile. Until the police get their collective act together, which includes better candidate screening and training, there will and should be pushback. Until there is a meaningful cultural shift in the collective minds of the police force, there will and should be pushback. If it happens often enough, and it does, victims and potential victims will paint with as broad a brush as their aggressors.
As for Rand, maybe it would be understandable for her to have overcorrected if she had remained where she was. But she fled to a capitalist country and then told the capitalists how to be "better" capitalists. That's way over the top, even for those who overcorrect. She just presented the opposite side of the same perverted coin. She didn't just overcorrect; she went ass over teakettle.