David Mamet has written a scathing “rant against assimilation.” It may “shock those devotees who have either discounted or ignored the political implications of Mamet’s Jewish turn. As in his recent mocking response to Mel Gibson’s anti-Semitic ravings, Mamet has of late become a self-styled defender of the faith, accusing all defamers of Israel of being racists in their flagrant anti-Semitism.”