I have to strain to refrain from laughing when I hear someone say or write that we live in a post-racial society. No doubt, the country’s non-Anglo population has reached a critical mass. But it has not reached critical acceptance of the HispanicLatinos, blacks, Asians and the many others who are transforming the nation – and most likely never will. Last week, in San Antonio, the kids from Edison High School, an overwhelmingly HispanicLatino campus, were subjected to shouts of “USA! USA!” after their basketball team lost a playoff game to a school from across town in predominantly non-HispanicLatino Alamo Heights.