That love of country doesn’t have to be, and shouldn’t be, uncritical. But the faults you find, the critiques you offer, should be about the ways in which we don’t yet live up to our own ideals. If what bothers you about America is, instead, the fact that it doesn’t look exactly the way it did in the past (or the way you imagine it looked in the past), then you don’t love your country — you care only about your tribe.

And all too many influential figures on the right are tribalists, not patriots.

We got a graphic demonstration of that reality after Michelle Obama’s speech, when she spoke of the wonder of watching her daughters play on the lawn of “a house that was built by slaves.” It was an uplifting and, yes, patriotic image, a celebration of a nation that is always seeking to become better, to transcend its flaws.

But all many people on the right — especially the media figures who set the Republican agenda — heard was a knock on white people. “They can’t stop talking about slavery,” complained Rush Limbaugh. The slaves had it good, insisted Bill O’Reilly: “They were well fed and had decent lodgings.” Both men were, in effect, saying that whites are their tribe and must never be criticized.

This same tribal urge surely underlies a lot of the right’s rhetoric about national security. Why are Republicans so fixated on the notion that the president must use the phrase “Islamic terrorism,” when actual experts on terrorism agree that this would actually hurt national security, by helping to alienate peaceful Muslims?