Counterpoint: Something like 70% (or so) of Canada's trade is with the USA. And we can't turn that around in three months short of a trade deal with someone like China who is just as problematic. Our government needs to start worrying, and maybe acting, now. Being proactive rather than reactive might just salvage some Canadian jobs. Yes, he might back down if we stand firm. But even standing up to him needs to start now, not in January. Waiting to see what he really does could be disastrous given our economy is already fairly weak.
Hopefully, Trump finally realizes what economists are already saying: That a tariff regime like he wants will ultimately sink his economy. But this is Trump and listening to experts is not his strong suit, else Kennedy would not be in charge of health instead of, you know, an actual doctor as they had with Fauci.