Some people just don't like Mexicans -- or anyone else from south of the border. They think Latinos are freeloaders and welfare cheats who are too lazy to learn English. They think Latinos have too many babies, and that Latino kids will dumb down our schools. They think Latinos are dirty, diseased, indolent and more prone to criminal behavior. They think Latinos are just too different from us ever to become real Americans. No amount of hard, empirical evidence to the contrary, and no amount of reasoned argument or appeals to decency and fairness, will convince this small group of...