You're totally on the wrong side of this issue. These people are criminals, law-breakers, and should be shipped back to their home country paid for by that country. I don't care how hard they work, I don't give a rip about their families or whatever, they're ILLEGAL!
Also --- Vicente Fox has only 2 years left unless he plans to do some kind of coup and stay in power after his one term is over. It's looking like the PRD with AMLO the mayor of Mexico City is likely to win. He's being compared with Chavez of Venezuela --- which means Mexico could be taking a serious leftward turn --- and the recent elections look like it is. We can't share our Social Security system with a Communist country. Mexico is way too unstable for a merger at this time.