Canada

Forbid electricity and oil export. We can use the cheap electricity and cheap plastic, aluminium, steel production to undercut everyone else on price for manufactured goods. Then make US finance holding canadian asset squeal by throwing every trick at them until they liquidate to canadian owners at a steep discount. Mop up any unemployment with a massive housing building and infrastructure program. For the next four years, every productive investment is going to be free. Start that money printer.

If americans look at us wrong, ration potash exports, especially during planting season.

Also reneg that anti satellite weapon agreement and purchase 50x top of the line french launch vehicles, develop a kessler doomsday weapon thwt will make space unusable for 500 years, to be ready to launch the instant an american tank crosses tge border.

Make national universal healthcare because provinces have trying to kill and privatize their public healthcare.

That and massively boost trade with China, SEA Africa, BRICS everyone.

Not that I need to provide any solution just to have the right to point out the current bad, do nothing, appeasement strategy