Descendants? My oldest son has passed before marriage. My middle son divorced his wife when she ran off with a barely 20 year old. Not certain he has interest in marriage or children at this point. My youngest son is really a step child. A complication of cancer in 1985. I have no prospects of descendants beyond my sons. My great grandparents had 19 children between 1865 and 1887. Most of them opted not to marry or have offspring. Most were exceptionally successful engineers and farmers. My second son is nearly finished with his degree in nuclear physics. He makes a satisfactory living as a real estate broker to finance his real interest in particle physics.
The US already has their version of Malema in office. He and his minions have run up the credit card and spent every resource they could touch. It won't be long before the resources to appease the mobs via EBT, Section-8, Obama phones and subsidized health care evaporate. The riots will be everywhere instead of a single city spectacle with "wall to wall" press coverage.
For what its worth, the black population in the US isn’t growing at a much different rate than the white population; they can’t even deal with the Latinos that are displacing them in the cities, in the workforce, in the drug trade, etc.
I don’t see the tantrums of Ferguson and Baltimore as demonstrations of black strength but failure and desperation; if they did that damage in white areas I’d view it differently. In my area (and I suspect this is national) the formerly “white” areas/suburbs closest to the urban cores are becoming very Hispanic and Asian, and they bear the brunt of black crime now (see Michael Brown’s theft of cigars in Ferguson as an example). Blacks realize that whites (and their tax dollars) are evacuating, and their areas are deteriorating as a result - hence the unrest.
A couple of years ago there was a news story (and threads here) about the fiscal crisis in cities; current black residents were railing about the amount of money these cities had to pony up for pensions to primarily white retirees. The financial resources the black politicians commandeered when they took political reins of cities turned out to have little cash but a lot of IOUs, and were quickly depleted (with no revenue sources to replace them). They can riot to their hearts’ content, and with each passing day they impact fewer and fewer people “that matter”...