Canada was once a smug nation. We thought ourselves virtuous, and the rest of the world took us at our own estimation, especially Americans who threatened to move here when a Bush president or two became particularly intolerable. And we would have welcomed you!

That was Canada for you: eager to meet kindred souls such as draft dodgers and conscientious objectors. We were peacekeepers rather than bomb droppers, environmentally aware, urban, gun controlling, laughably snowbound, and apologetic to a fault.

Now, I’m sorry to say, we can no longer invite you. I mean, we’d still like to, but you…