Canada’s economy is intertwined with America’s in ways that benefit both countries. It is not a conduit for large amounts of fentanyl or illegal immigrants. So why would Trump threaten tariffs that would damage residents of both countries?
This dispute was, and is, about power, not money. Trump wants the people of Canada to know that, regardless of who their prime minister is, he’s their boss. They can continue to enjoy the benefits of their relationship with America as long as they shut up and do what he says.
He wants them to be Melania.