It seems that hate is everywhere these days-dangerous, blatant, ugly hate. No one bothers to hide their animosity anymore. There's seemingly no shame in intolerance. Instead, hate is on constant display-it's loudly proclaimed all over social media, bragged about in public venues, and flaunted in atrocities, mayhem, and unthinkable acts of violence. Hatred gave us the Holocaust, during which some six million Jews were tortured, starved,...