You're right, but only half-way to the most realistic conclusion. Canada is stuck between a rock and a hard place. The US is increasingly hostile, because the US wants control over the warming arctic naval routes and higher border security. Greenland is just a softer target for now. However, turning away from the US (~85% of Canadian trade) to China (~8%) weakens Canada and gives political cover for the US to take further hostile action.

There's a game being played that, once you see it, it becomes clear that some world leaders are thinking about 2035, and other world leaders are still in 2015. I don't like it, and I genuinely feel for Canadians; they're a small, inconveniently positioned pawn that is getting caught up in something so much bigger than their country and leadership has the resources to deal with.