You can’t say he didn’t warn us. It’s true that, in his inaugural address, President Joe Biden’s call for “unity,” coming as it did after a period of great civil strife and contention, sounded like a promise. It’s only taken us nine months to discover that the promised unity was really a threat. You may remember that, having cited the “challenges” to the nation of the pandemic and its economic consequences, the alleged 400 years’ deferral of racial justice, the alleged clearly audible “cry for survival” from planet earth, and the alleged rise of (right-wing) political “extremism,” Biden went on to say the following: “To overcome these challenges—to restore the soul and to secure the future of America—requires more than words. It requires that most elusive of things in a democracy: Unity.” Now we know why he didn’t mention the reason why “unity” is “that most elusive of things in …