Of course that policy would tried to be blocked by those who see all Mexians as "evil" by their birth.
Ahh you must be refering to the Mexican elite. They will just call you a racist American imperialist for interfering with their country and you will end up agreeing with them.
It is time for them(Mexican elite) to go.
Paraphrasing Vice President Cheney's speech to the 2000 Republican Convention.