I don't like generalizing groups of people any more than other people do, but scenes like this show me how vulnerable these people are to being labeled. That and a lack of outcry from other "peace" activists would lead me to lump all these people in one group.
Anyone seeing the footage from the protests in SF, Chicago, New York and even Austin would probably come to the same conclusion as me, that these movements are more about being seen, rioting and impressing members of the opposite sex, that they are about trying to foster "Peace".