A group of people, young as they might be, who willingly download LOIC, willingly give control over to a hive mind, willingly put themselves at risk for arrest, all for combating censorship and governmental corruption that they feel strongly about, and you're saying that this is a group that's 99% children with no empathy? Disregard Payback - what about when they hit affiliates of the RIAA? Or the corruption of Scientology? Hal Turner? Gene Simmons, who suggested that if people downloaded some mp3s, that they should have their livelihoods taken from them?
I mean, yeah sure, I'll agree that there's probably a lot of people/kids that go along with it without really understanding the implications (as is shown in a lot of the stupid shit that's undertaken, like trolling various forums or CWC or Habbo), but I'd hazard that a large portion of Anonymous is likely cognizant of what they're doing, and are being driven by personal values and intelligence as well as mass appeal.
Your suggestion is biased; I can tell from some of the exaggerations and from having seen quite a few people upset with 4chan in my life.