"It can certainly be misleading to take the attributes of a m..." — Christopher Hitchens quote meaning

It can certainly be misleading to take the attributes of a movement, or the anxieties and contradictions of a moment, and to personalize or 'objectify' them in the figure of one individual. Yet ordinary discourse would be unfeasible without the use of portmanteau terms—like 'Stalinism,' say—just as the most scrupulous insistence on historical forces will often have to concede to the sheer personality of a Napoleon or a Hitler. I thought then, and I think now, that Osama bin Laden was a near-flawless personification of the mentality of a real force: the force of Islamic jihad. And I also thought, and think now, that this force absolutely deserves to be called evil, and that the recent decapitation of its most notorious demagogue and organizer is to be welcomed without reserve. Osama bin Laden's writings and actions constitute a direct negation of human liberty, and vent an undisguised hatred and contempt for life itself.