On May 25, I wrote a column entitled “Latino Fear and Loathing” that has provoked considerable anger and recriminations among my fellow conservatives. In the column I asserted that, “Some people just don’t like Mexicans — or anyone else from south of the border,” and described some of the fears shaping these sentiments: “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...