Your points are extremely valid, and as a US citizen: I apologize for what our misguided leaders have done.  I encourage Canada to withdraw from NAFTA if your country starts a huge biosolar habitat effort to do your best to extend your remaining supplies for internal use only for decades.  This shrinkage in energy shared carrying-capacity to the US will help jumpstart conservation and the building of biosolar habitats in the NE & NW parts of the US, maybe elsewhere inside the US, too.  The Carter Doctrine is only enforceable if our military has lots of energy, and the military knows that attacking Canada would be pointless because you could easily have detrito-terrorists constantly blowing up the pipelines and powerlines running south.  The US & Canadian military should both understand that setting up mutual Earthmarines to protect the biosolars is much more energy efficient, humane, and protective of biodiversity and existing infrastructure than a continental war.

Bob Shaw in Phx,Az  Are Humans Smarter than Yeast?