This is an excerpt from a longer piece over at sf.streetsblog.org:
Police repression, when it comes, is part of a larger culture war between those who think the American Way of Life is fundamentally about cars, business, and private property (almost always a strong bias of individual police) and the growing movement to shift into a new way of organizing our lives, based on ecological principles, reduced resource use, and a more convivial, publicly-oriented cityscape. Most of us riding in Critical Mass are not out to break the law or antagonize anyone, but we do feel strongly that we have to demonstrate firmly and directly a different way of life. To those of us committed to a life with a greater sense of conviviality and a commitment to a public sphere, the childish and antagonistic behavior that a few cyclists bring to the ride has been dismaying.
Unfortunately, the old xerocracy mostly died out (with the notable exception of the 10th anniversary ride in 2002–four different beautiful posters were made and put all around town, dozens of stickers and flyers were distributed at the ride, a book was published). Once or twice a year someone shows up with a flyer addressing the culture of the ride, or prepares a suggested route, but in general, cultural production, once so essential to the experience, went into hibernation. After more than a decade the transmission of the culture from oldtimers to newbies has broken down. People riding in Critical Mass these days might have been infants when we started it 18 years ago!
Sadly, some people show up because they believe all the media lies about this big anarchistic confrontational experience, though they are tiny in number. Still, when they behave badly they get an inordinate amount of attention, not just in the media when it deigns to address this ongoing cultural phenomenon, but weirdly, from other cyclists. There’s a mentality that has been shaped by our profit-driven media: when it bleeds, it leads. I’m afraid all too many people on all sides of Critical Mass tend to fall into this same mental trap, focusing their attention on the tiny few who behave like jerks, rather than the overwhelming thousands (and not just here, but across the planet in over 300 cities worldwide) who manage things well, extend courtesy and kindness to bystanders, have joyful interchanges with people briefly stuck in buses and cars, and are greeted exuberantly from neighbors in their windows as we roll through central city neighborhoods.