People tell themselves, strenuously, that they believe in this or that political position, whether it is to do with wealth distribution or climate policy or the rights of animals. They commit to some plan, whether it is to stop old-growth logging, or protest nuclear power, or block a shipping port in order to bring capitalism, or at least logistics, to its knees. But the deeper motivation for their rhetoric—the values they promote, the lifestyle they have chosen, the look they present—is to shore up their own identity.
