aljazeera | Then there is the essential criminalisation of incoming migrants, a result of the apparent US opinion that only American people, products, and armies should be able to penetrate global borders at will.
This arrangement ensures high returns on human-smuggling operations that also contribute to cartel coffers.
Finally, as The Intercept explained last year, billions of dollars in drug war assistance continue to flow "with few exceptions" to Mexico despite "US government documents … demonstrat[ing] that the United States is well aware that its support is going to Mexican authorities connected to abuses".
The article went on to comment on the fact that Mexico had "recently surpassed Colombia to become the largest customer for US weapons in Latin America."
Objectively, if you are looking to protect rather than kill people, the last thing you do is inject a bunch of money and weapons into a landscape of lethally corrupt impunity.