600 million people live in North America. 1 billion people live in the Americas. Another billion live on the Pacific rim in non-Chinese countries.
Establishing regulatory harmony across all those countries is obviously not possible in the same way it is in a single authoritarian state, but if the US made it a priority to create a trade bloc capable of replicating China’s manufacturing capacity, it probably could.
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.
There was an APAC trade treaty called the TPP that Rodham-Clinton/Obama pulled out of which would have done exactly that. They were forced to withdraw because of pressure from unions, ie labor not capital.
Now it's the CPTPP and doesn't include the US.
Canada is looking to the Pacific and EU for trade now (and China as well), so is Mexico.
It's likely that the EU/UK trade bloc will connect with the CPTPP via both the UK and Canada, which connects them to the APAC/ASEAN nations.
Everyone is aware of the power of the Chinese economy and the idea of the CPTPP is precisely to build up a trade economy that can compete and co-operate with China on an equal basis.
In the meantime, China is using its Belt & Road Initiative as a sort of "Marshall Plan" to extend its influence by building infrastructure like ports and rail.
These trade initiatives are at least focused on increasing trade, as opposed to the US "trade policy" which is to use tariffs as a crude form of protectionism and extortion to "bring manufacturing back".