The one thing that can hurt Canada the most is Trump's opposition to NAFTA. If the House and the Senate back him on this, Canada had better start looking for new trade partners. It'll hurt our economy big time, but it's better to trade with far off lands than with nobody.
Another piece of goid news is that the UK is now as desperate as Canada is to find a trading partner. Marriage of convenience. Of course it won't benefit us as much as trade with a neighbour with five times the UK's population is better than transatlantic trade with a far off land, but that is still better than nothing.
The best thing Canada can do is follow suit and reinstate major tariffs and excise fees on foreign products and restart the manufacturing sector here so our workers can have a decent standard of living without working for 3 different fast-food outlets. Globalism and free trade took a huge kick in the nuts yesterday which is great. You may be happy with that $2 widget from China that is of inferior quality because that's all you can afford on a Burger King salary, I will take the $20 widget made here that's actually worth $20 and allows the guy making it to feed & house his family without needing 2 other jobs and his wife to work too. Your idealism in supporting a globalist society shows a distinct lack of knowledge of how the economy really works and how you make it grow. Hint for you....the answer is not higher taxes and more socialist policy.