Nobody on the opposing side of immigration is talking about mass deportations. Instead, it's "Attrition through Enforcement" where the magnets of black market labor and socialized health care cease.
Mexico is the richest country in Latin America. It is run by an oligachy of 46 families and is home to Carlos Slim a Hungarian immigrant that is the wealthiest man in the world.
Mexicans are voctims of geography, and if they're so loyal to their homeland they need to make efforts to change things there, instead of migrating with their problems to the U.S.