OWS is confronting the power structure. The two political parties for the most part support the power structure.
To raise systemic issues and confront the pillars of the power structure, broad support across the society is needed.
The government and security apparatus have the weapons. The oligarchs who are destroying the country and the environment would not hesitate to use power to squash any effort to reduce their power.
There is a cancer in the OWS movement of Black Bloc anarchists. They use violence against the police as a tactic. They destroy property. They make marches and demonstrations dangerous to keep people away and reduce the number who would bring their children.
I recommend reading Chris Hedges article today entitled "The Cancer in Occupy."
It is reprinted on the web site www.commondreams.org and there are many comments. Most agree with what he is saying. A few think he is a sell out for criticizing any part of the Occupy movement.
I think that Chris Hedges and Glenn Greenwald are among the top half dozen commentators on our political situation. In the last couple of days Glenn had an article on the attacks on US drones targeting rescuers and mourners, and the second article quotes anonymous members of the administration who say that people who speak out against our murder from the sky are helping the terrorists.
In any case, here is Chris Hedges in an interview along with Laurence Lessing after they were at a Occupy the Courts demonstration. The video begins with OWS footage. Hedges makes a strong case for confronting the power structure. Chris has argued for civil disobedience for years but it must maintain the discipline of non violence.