I think most people, especially in Seattle, respect others' right to utilize their freedom of speach and protest in a reasonable manner. Even if it includes occupying public space for a while. And I think a lot of people believe most protest movements have valid things to say.
But after an extended period of time a protest gets unreasonbable. After a while, a protest movement is joined by criminals, anarchists, and hooligans. Seattle CC wants the protesters off its campus because "protesters" are leaving hypodermic needles and garbage everwhere, and generally trashing the place.
I can't help but think the purple-haired mohawk guy I see at the Occupy movement doesn't represent most people's (even the 99%'s)values or concerns and, perhaps, is part of the movement because he really has nothing better to do.
Moreover, what exactly are the protesters seeking to compel the City of Seattle to do? Its one thing to protest Congress in D.C. or protest the President, but the City of Seattle has no control over federal policy like bailing out banks. Meanwhile, occupiers are costing the City millions of dollars it doesn't have.
I really don't see how that is having a positive effect on public policy.