What is happening in Ferguson is a result of the unfinished business of the civil-rights movement. The process is unjust, and laws have been systematically stripped away, undoing many of the provisions that protected minorities from white terror. Many blacks feel they have been denied all legitimate means of civic redress; thus they have no other appropriate venue to express their angst.
I believe people in Ferguson -- like in any other community -- can organize, rally and elect people who will represent them and make fair laws in their name... But that is no easy feat, especially when you lack formal education -- which, by the way is hard to attain when you've been poor all your life.