June 13, 2004 'What's the Matter With Kansas?': Heartland SecurityBy JOSH CHAFETZ WHAT'S THE MATTER WITH KANSAS? How Conservatives Won the Heart of America. By Thomas Frank. 306 pp. Metropolitan Books/ Henry Holt & Company. $24. IKE the most vitriolic of right-wing pundits (Ann Coulter springs unbidden to mind), Thomas Frank has a distinctly Manichean worldview. The political universe, for him, is divided between the good guys and the conservatives. The conservatives are further divided between the fools and the knaves. The fools are ''the true believers, the average folks who have been driven into right-wing politics by what...