Establishing regulatory harmony is not only not possible but the current regime is working in exactly the opposite direction.

If the US wants to take on China, and actually needs Canada's help to do it -- I can assure you they just set themselves back 10-20 years from achieving that. We no longer have any interest.

The labour forces of Mexico and Canada are not at the US's disposal for these kind of games anymore. For several decades we have been exploited by the US for low wages and cheap resources -- and now there's a regime that's making cheap political points by accusing us of the opposite while trying to emmiserate our populace. So, yeah, no thanks.