If oil is excluded the truly boss move on Canada & Mexico's part would just be to introduce a 25% export premium on those products while the tariffs are in effect.
This would be beautiful. I remember when there were mod-chip stores beside internet cafes, where i could bring my xbox and pay to have a chip and a hard drive installed that let me copy any game i wanted from a rented disk or downloaded off the internet right onto the console. I still have that console and pulled it out during quarantine to make use of the huge library of games on the hard drive. Having this sort of freedom for all types of goods and electronics would be incredible, but i doubt it will ever happen.
Exactly, clearly they'll still pay for it if it's important enough to exempt. In Canada's case we could give Alberta the extra revenue just so they won't get too cranky.