The EU was formed from developed countries with a common history and no peasant class.
Mexico isn't Germany or Italy for that matter.
It is a hugely corrupt, economically strangled country with terrible law enforcement, huge drug cartels, a vast underclass of illiterates, and so many other factors that make a comparison between the EU and NAU false.
We open ourselves to the NAU, and I predict we will be overwhelmed within a decade.
It isn't about people, it is about the structure of the countries involved. The structures are not the same will not assimilate.
Agreed, the structures are not the same between our countries.
What will become of our constitution? Second ammendment will have to be gone. Lose that and you've lost.
Period.