Extremism

Originally found in Palestine, The Legitimacy of Home, by Richard Falk. Read more at his website:

An acute problem with extremism, whether of the Likud or Tea Party variety, is that it subordinates interests and rationality to the dictates of an obsessive and emotive vision that is incapable of calculating the balance of gains and losses in conflict situations, being preoccupied with all or nothing outcomes, which is the antithesis of diplomacy