In the grand scheme of things, it is probably totally insufficient for Canada alone to impose counter-tariffs and produce enough of an economic consequence to get the dotard to back off. For the time being, I'm seeing other G6 allies up in arms about the same tariffs as well, and some countries have taken the issue up to WTO or EU to complain. But those international complaint processes are often slow, and the rulings may or may not be binding anyway, should the US chooses to ignore them.
We've see how Trump the DUFUS POTUS operates in "diplomacy" and negotiations -- he relies on a mix of unreasonable demands, threats, and the occasional befriending to determine the absolute bottom line of his opponents. Judging by the stories that I've read, this practice isn't at that different than how he conducts his private business prior to his presidency.
It is both sad and unfortunate that he has carried this small and self-serving mindset from his business world into world politics.
