When the established rules leave some in a bad enough spot they will become frustrated enough to break the rules as best as they can. Sometimes all you get are

When the established rules leave some in a bad enough spot they will become frustrated enough to break the rules as best as they can. Sometimes all you get are pointless riots, sometimes you get music, sometimes you get a revolution. It depends on the situation. What is always true is that the establishment wants to maintain the current order. They don't want to understand or accommodate the malcontents. Instead they smear and continue to oppress them. In the case of the recent riots, there is a large segment of white america that want to see blacks kept down, and are happy for the police to do their dirty work. That's why there are protests, and that's also why there are riots - different people expressing their anger and frustration in their own ways.