You're basically describing politics, where specific opinions are central to a group identity. So long as there is an innate human desire to belong, there will

You're basically describing politics, where specific opinions are central to a group identity. So long as there is an innate human desire to belong, there will be plenty of people who are happy to live with any amount of cognitive dissonance. Joining a gadfly swarm just gives them an opportunity to prove their worth to the group.