[alphabassettgrrl]

Groupthink (I almost wrote gropethink) is very much associated with solidarity and feeling "we", togetherness. Some people feel you can't have friends or a group unless you're all clones of each other. Those are the people who fall into cults, religious groups, political groups, social groups - the particular group is irrelevant. The fact that they get to belong, and that someone else will tell them what to do, is what matters.

The mistake is thinking that since we agree on one subject, that we must agree on all subjects. What fun would that be? But difference makes some people nervous, and they work to stamp out any variation in their world.