Ultimately I think we will see this world wide, including the US. The basic problem is that you have a class of people for which there is no future, and for them the consequences of their actions have no meaning. The very rich seem to be completely unaware that the root cause is an underlying disenfranchisement that comes with the concentration of wealth by a very small percentage of the population. The only solution to stopping this sort of rioting is to offer the rioters a future, which means that the rich must give up some of their wealth. Ultimately, as the French Revolution so eloquently demonstrated, sometimes voluntarily giving up your wealth is a better option than involuntarily giving up your head.
I wonder if this isn't essentially a perverse tragedy of the commons for the rich. They must know that the consequences of their wealth accumulation are horrific, but in order to correct this they have to act collectively, and they have to do so voluntarily since they have so much political power nobody will ever force them to give up their wealth. The problem is that enriching the lower classes is a public good, and not in any rich person's individual interests.