I'll tell you what I think. I think they riot because they aren't smart enough to know they aren't supposed to riot. No one is telling urban young people that they aren't supposed to sell drugs; they aren't supposed to shoot each other; they aren't supposed to steal; they aren't supposed to beat up other young people.
I don't know how this is going to end. Usually, children are aghast at their parent's behavior and vow to be different when they grow up. Is that going to happen here? If rioting looks like fun, will the rioters kids grow up to be senators and CEOs, or will they move straight to the anarchist movement?
It scares me.