Mexico Promises to Block Border Wall Plan

Ok.  Does anyone see the humor in this? 

"MEXICO CITY - The Mexican government, angered by a U.S. proposal to extend a wall along the border to keep out migrants, pledged Tuesday to block the plan and organize an international campaign against it. Facing a growing tide of anti-immigrant sentiment north of the border, the Mexican government has taken out ads urging Mexican workers to denounce rights violations in the United States. It also is hiring an American public relations firm to improve its image and counter growing U.S. concerns about immigration. "

The Mexican government is angry that we want to control our borders?  The article then goes on to call the wall, which would basically solve a lot of security issues for the US, is "unfair?"

This is like a heroin user complaining because syringe production will cease.