A tangled web

Somebody is going to write a PhD thesis about this:

DEMACÚ, Mexico – Luis Martínez went from being a successful Dallas businessman to a struggling alfalfa farmer in rural central Mexico because of a North Texas crackdown on illegal immigrants.
Now, that crackdown is squeezing towns across Mexico as immigrant unemployment grows in the U.S. and money sent home declines at a record rate.

There are several possibilities:
1. With fewer dollars coming in from the U.S., the crime rate in Mexico goes up and the Mexican government finally suffers some consequence for its long-term policy of exporting poverty and importing dollars.
2. Mexicans newly unemployed in the U.S. go back to Mexico, causing a strain on its government and relieving pressure on Washington to finish the fence.
3. Instead of going back to Mexico, illegal immigrants turn to crime in the U.S. and send some of the proceeds to Mexico, making the U.S. pay a price for tougher enforcement while Mexico remains a winner.
This would be a thesis that I actually would read.