Occupy Wall Street movements have attracted homeless people. That is, real homeless people and not middle class people pretending to be homeless. The middle-class SWPL types are in a quandary. Kicking out the real homeless people makes them seem not much different than the evil capitalists; though only because of the way they have framed things. The bottom of the 99% are not welcome at OWS.
I hold out hope that OWS folks will realize that the lumpen-proletariat can't be part of a true Marxist movement.