"Trump's quest to conquer Canada is confusing everyone: President Donald Trump increasingly links a trade war to his push to annex America's northern neighbor."
The underlying issue is that it makes sense from a long-term economic standpoint if you ignore everything else. Canada has tons of resources and even more land which will get more valuable as the world warms. Argicultural regions may shift northward if there is significant warming and that could hurt the US and benefit Canada. So strategically there is logic.
The main complicating factor is that Trump can be quite erratic in his views, so it may just shift off of his plate and he focuses on something else if we are lucky.
Its just crazy. Are they seriously going to bully current allies and start wars with them?