When NAFTA was implemented, not only was it destructive to the U.S. working middle class, it also decimated the Mexican family farm. Millions of farming livlihoods were destroyed, overswept by a neofeudalist wave of 'free' trade. The jobless went north.

Mexico is seen as a slave labor colony to be exploited by the global elite. The peoples of Mexico are oppressed by a ruthlessly corrupt narco-government which serves as suzerain for  U.S. based industrialists, who in return grant limited autonomy and protection to certain compliant drug racketeers who subjugate public and labor.

It's unrealistic to believe in an incorruptable government, because the temptations of power and lucre have always overwhelmed corrupt people to abuse their control throughout the ages. Nowadays, their ill intent for others is magnified by cutting edge technologies which allow bad people to do great harm with insane efficiency. 

The global elite live by their own rules. They have abrogated the social compact.