Since 2007, John Culpepper had been anticipating this moment: the unveiling of a statue to the common Confederate soldier in his hometown of Chickamauga, Georgia. In November of last year, three days before Donald Trump won the presidency, it became a reality. Culpepper founded the local chapter of the Sons of Confederate Veterans, the self-described historic honor society that's been keeping the Confederate legacy alive for more than a century. Culpepper greeted visitors with smiles and handshakes as they filed into rows of white folding chairs behind the towering, shrouded statue. Most of them were his neighbors from Chickamauga, a...