The title of an op-ed piece in the Washington Post inadvertently nails it: Ferguson isn’t about black rage against cops. It’s white rage against progress.
This is the same progress we saw in Hispaniola as it its western half became Haiti and in southern Rhodesia as it became Zimbabwe--once sub-Saharan Africa's breadbasket and now a net importer of food despite well over half of its gainfully employed population working in agriculture (the regressive United States, in contrast, is a net exporter of food even though only 2% of its population works on the farm). It's the same progress we're now seeing in South Africa and have seen in the so many other American cities over the last several decades, none more saliently than Detroit. All across the globe the consequences of such venerable progress are as dreary as they are predictable.
A generation ago, Ferguson was a relatively affluent, safe, functional middle class American suburb. Naturally, it was then predominately white (85%). Over the last few decades it has progressed towards its ultimate future as a blighted, impoverished, dangerous, dysfunctional underclass welfare slum. Naturally, it is now predominately black (70% and growing).
Whites rage against this just as they've raged against slavery, animal cruelty, capital punishment, religious intolerance, ozone depletion, and all the other uniquely WEIRD societal concerns that non-European descended nations don't care much about. Fortunately, Euros--who constituted 25% of the world's population in 1950--are steadily shrinking as a percentage of the population. At the turn of the millennium, they had dropped to around 16% and by mid-century it is estimated will represent just 10% of the globe's human inhabitants. So cheers to the diminution of whites and all their rage--the future looks very vibrant indeed!