
Trump is definitely stupid enough to do it without understanding anything. The only question is whether someone with an actual brain can get to him before he tweets about it. Because the second he says it publicly, his narcissistic ego will only allow him to double down regardless of what it does to the US or him personally. Ideally someone would float the idea to him on air
Burdening Canadians who try to trade with enemy nations is the point. It has to hurt for people to get off their ass and do the right thing by divesting from the US completely. Export taxes would miss the majority of international commerce with the US, which would hamper the effectiveness significantly. It doesn’t do anything unless it’s impossible to avoid for anyone still willing to touch the US