Romney's great speech -- with one significant mistake

I do not know why Romney did not include nonbelievers in his moving portrait of the great American family. We were founded by believing Christians, but soon enough Jeremiah Johnson, and the old proud agnostic mountain men, and the village atheist, and the Brahmin doubter, were there, and they too are part of us, part of this wonderful thing we have. Why did Mr. Romney not do the obvious thing and include them? My guess: It would have been reported, and some idiots would have seen it and been offended that this Romney character likes to laud atheists. And he would have lost the idiot vote.