Would Americans then say, enough is enough.
That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, --That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness. Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn, that mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed. But when a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security. —
This would not be a light or transient cause, we've been shown by our forefathers how to handle an out of control government that no longer follows the wishes of it's citizens.
It's never gonna happen. Mexico won't even allow foreign investment in their oil industry. You expect them to suddenly give up their entire country? Their conspiracy nutjobs (they'd make our nutjobs sound sane) would be convinced the NAU was a plot to steal their oil.
Repeat after me, NEVER GONNA HAPPEN!