High demand groups must always have an enemy. This enemy must constitute an existential threat to the group (real or imagined). It's what enables the group to make the demands it does of its members. The ends need to seem to justify the means, though actually achieving those ends are unnecessary. In fact it's not even desirable, because once they do, they need to manufacture a new enemy.

This understanding gives interesting context to the Mormon obsession with the quote "there needs be opposition in all things." There literally does.