Dennis Hale makes the entirely commonsensical and grown-up point that choosing means dividing. Unity requires the overcoming or suppression of politics. Obama promises to build the kingdom on earth, which amounts to the overcoming of politics. But people who promise that usually end up trying to suppress politics.
If Obama were serious about unity, he’d be Lenin, Stalin, Hitler, or Mussolini. I credit him with not being altogether serious. He’s merely, as Jonah G. would say, a liberal fascist.