Not particularly thrilled with training Mexican anti-cartel troops as there's a long history of this not working out.
Mexican leadership is inherently compromised. I think you need to just hit the shit out of the cartels directly and teach them not to mess with anything/anyone that has to do with the US.
That plus the border and money laundering would do 95% of the job.
Nothing like being in a massive calorie deficit and getting Indian Tacos on the rez coming back from burning man.
Bonus points if you're still tripping hard enough that the ancestors speak to you through the tacos.