What happens if the USA heavily sanctioned Mexico?

After the 60 minutes where the Mexican president made outrageous demands in order to control the border I think Mexico is a complete net negative as an "ally".

What happens if we pull out of NAFTA and or heavily sanction them until they take responsibility and actions for all the illegal migration. It's become so bad I genuinely believe the mobilization of military forces may be necessary. It's far more important to us than any political BS in the middle east, or in Ukraine. Mexico is clearly not taking the US seriously, attempting to export us, and has displayed time and time again that they're weak and corrupt as cartel crime continually runs rampant spilling over into the US consistently. What good comes from them?

What are your thoughts?

What happens if the USA heavily sanctioned Mexico?
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