That article is funny. Tragic, but funny. It really goes out of the way to paint the political right as a threat...
But what it doesn't address, and is more important in my opinion, is what the left is doing to provoke such dire reactions by the right.
Either way, the author is a Canadian and asks the question "what should Canada do to prepare" for such a civil war in the United States. And completely misses the idea in his gun hating rant that Canadians can't do diddly all about it since they allowed their government to disarm them and will have to depend on a authoritarian government of their own for "protection."
Moreover, when violent left wing groups decide they want something Canadian citizens have and hop across the border which is just as porous as our southern border, they can't and won't stop them either. In short, during a civil war in the United States, Canadian areas and citizens easily accessible from the former United States will become their bitch regardless of political party. Because the author is ignorant and doesn't see the fact violent extremists are evident on both sides of the political equation, but only one has been tolerated in the last few years.