In January 2019, I wrote in these pages about how the teachings of ‘60s radical Saul Alinsky were all over school lesson plans in America, though students rarely knew of or understood the connection to Alinsky himself. It’s hard not to notice virtually the same phenomenon repeat itself with critical race theory, the pseudo-Marxist brand of race essentialism at the core of the curriculum fights between students (and their parents) and teachers. Racial cooperation and colorblindness have been replaced in many schools by an all-encompassing valuation of students’ lives and experiences based solely on the color of their skin. Alinsky would be proud. Simply attack opponents personally and professionally, he advised. Intimidate them, disorient them. Welcome to the politics of the 21st century, in which candlelight vigils and conventional political processes are trampled underfoot by...