Strong group identity is essential for social movements. There can be no serious social movement—the kind that challenges the powerful and privileged—without a correspondingly serious group identity that encourages a core of members to contribute an exceptional level of commitment, sacrifice and heroics over the course of prolonged struggle. This kind of group identity is clearly emerging right now among core participants in occupations across the country and around the world, and that’s a good thing.
However, strong group identity is also something of a double-edged sword. The stronger the identity and cohesion of the group, the more likely people are to become alienated from other groups, and from the broader society.
The Political Identity Paradox states that while social change groups require a strong internal identity in order to foster the level of commitment needed for protracted struggle, this same cohesion tends over time to isolate the group; and isolated groups are hard-pressed to build the kind of broad-based power needed to achieve the big changes they imagine.