Yes, DU wants violence. Any casual observer can see that.
The DUmmies are the dregs and rejects of the left. But. They do share some things with the socialist communists in the democrat party. All parts of the left understand they can only achieve their goals through violence. Obama's mentor Ayers was the most open about it: After the revolution, 25 million Americans would have to be put to death.
The ignorant masses in the inner city have been cultivated by democrats to be an army. Occupiers secretly embrace terrorism. The plethora of laws make everyone a criminal.
Only one thing stands in their way. The 2nd Amendment. that was Obama's 2nd term agenda, to make it so onerous to own a weapon, people would give them up.
Frankly I do not think there will be much in the way of violence. Even the inner city knows Obama will lose, and he didn't do anything for them anyway. He could have bought them off, but squandered his chance in 2010.