I hear you ER.
All I'd suggest is that with OWS (and any other organic or grassroots cultural movements) they are works in progress. I agree with a third political (short of changing the entire voting system in US)---and to that end many people are attracted to the Green Party for many of the same reasons as OWS. People laugh off the Green Party as non viable which goes right into the typical political reasoning OWS and others have tried to breakdown.
Check out the video posted above. You may not agree at first, but I've notice a huge difference in the types of conversations people have when they're not limited by what the establishment deems practical or acceptable. Including but not limited to discussions on racism (as in white supremacy), reparations here and abroad to questioning and rethinking the design of cities and urban landscapes (look up David Harvey's Rights to the City).