Why does it have to be violent at all? Many people on this site are a fan of Larry Lessig. Check out his alternative to the "violent end" of big business Mayday.us
Tens of millions of people are without healthcare, getting their homes taken away and are unable to provide for their families.
To put it bluntly, they're desperate.
Also, America has a history of violence, an armed populace and a "I'll take what's mine" foundational attitude.
Combine desperate people with a history of violence, and you get Ferguson, New Orleans, etc. etc.