Interprovince and EU trade is awesome, but the key for Canada is to diversify internal investment and trade away from "US National Security" control, that gives US authority to declare who Canada's enemies are. China investment in Canada, perhaps with processing /manufacturing facilities in addition to resource extraction would be a big economic boom. Chinese and Russian trade is better than excluding them.
The big danger from US extortion is destroying Canada's auto sector. Canada has extremely high subsidies for that sector, that should be looked at if our foreign owned domestic industry starts/threatens to back away from Canada as a result of US extortion. Importing EVs from China can enhance Canadian standards of living, but some assembly work, or just importing motors and batteries can make Canadian made vehicles competitive in US even with tariffs, and affordable in Canada.
Cowering together in the "abused wives club" of Europe and Ukraine is not the best strategy when normalized relations with countries that can stand up to the US is necessary to fend of war from US.