"I bet most of those very poor people will vote their wallets (Democrat) and not their social values (Republican"
If Mexico got real property rights, rule of law, free enterprise, it would rapidly catch up to America in standard of living.
And with Mexico's young and huge population, it would seem to me that the flow of funds would be out of Mexico. To elderly Americans. Infact can you imagine how dramatically it would change the SS debate with so many young people added?
However I don't doubt there would be other costs with Mexico, like the schooling and healthcare.
People can own private property in Mexico now and there laws might not be as good as ours but they are not that bad. The problem is that all the property is owned by a tiny percentage of the population and the vast majority own none.
Are you going to start this annexation ball rolling with a Victor Chavez style property redistribution from the rich to the poor?