Really, we'll never know how much property damage is done by the [insert group here] (tea party/OWS), but it's there. If it wasn't privileged, I assure you, I could attest to some stupid shit that's been done.... Additionally, it will always be denied that this damage was from X source, or someone will say that Y person was not "really" a part of X group. Then there's the "course and scope" argument, which states it was outside the course and scope of the X group or "after hours."
If someone who attends X group functions regularly trashes a bar afterwords, does that count? How affiliated with X group does Y person have to be anyhow? If said person gets into a fist fight outside that bar against a person with an opposing viewpoint after being pumped up at a rally, does that count? How about if Y person abandons their kid who holds an opposing political viewpoint and what percentage of the reason for abandonment must the political difference make up? I've had to deal with all of these and more.
Moreover, the TEA party existed before the OWS movement, so its had more time to create incidents/have morons do stupid things. Thus, would it really be fair to compare the two in terms of incidents if they were/could be properly tracked?
Or, maybe it's just the criminals I see spouting off their political beliefs/event attendance as a BS excuse for crimes they were going to commit anyhow? Who the crap knows?