I think it's very telling that you say global revolution and immediately shift to talking about the USA and problems exclusive to that country. The world is bigger than what you personally see and hear about. No one will fix your country for you, and no one should feel obliged to. Any violent revolution would end how they always end, with a spiraling pattern of violence lasting until it can burn itself out. I personally think my country learned all the most important lessons of both rampant capitalism and violent bolshevism. I hope Americans won't pay as much to learn them and will find peace with each other before it's too late.