Soon, if Biden gets his way, most Mexicans will be here in the USA, and then we can declare both countries one nation.
If most of Mehico is already here, why not share the actual real estate, and allow the US to "cultuvate" some of it.
Mehico is in a perfect location. It is just not as wide as the continental US. Kind of like haveing two coasts and reduced fly over acreage.
They just need some above average IQ Personell to put the geolocation and resources to work, and they would literally shine.
Probably have a lot of reverse migration, moths to a light sort of thing.
Call it Los Estados Unidos ☺