In recent days, America has produced an astounding spectacle. Americans desecrated and demanded removal of their own statues to their own heroes, including African Americans who fought for the Union; Hans Christian Heg, a Norwegian immigrant and dedicated abolitionist who modeled courage and gave his life in the Civil War; Taduesz Kosciuszko, the Polish-born designer of West Point who left money in his will to purchase freedom for American slaves; the World War II Memorial to the men and women who actually did fight fascism; and the Emancipation Memorial, a monument paid for by freed slaves, dedicated in a speech...