The latest effort to neuter conservatives and force Republicans to surrender comes from a deceptively titled device called “The Dignity Index.” The ruse is fronted by Kennedy relative Tim Shriver, who appears on Fox News in the guise of a perfectly reasonable moderate Democrat, the type we all wish still existed. His pitch is for politicians to treat your opponents with respect, lower the temperature of public debate and restore civility to public life. Who could be against such laudable goals? But who does the pitch not remind you of? Donald Trump, of course, with his bare-knuckled, smash-mouth, macho belligerence....