I think in the real world far more people are working together than just reading the internet would make it seem. Many of these fights are what my friend calls 'blogger basement battles' between people with keyboards but little or no political or social skills, and hence, are not out in the real world working for real change.
As John Lennon said, war is over (if you want it) - and sadly, many do not. They have their entire persona wrapped up in being some net warrior defending their turf, when, in fact, in many places, everyone else have moved on.