But you can have dual citizenship. With that you can move freely between Mexico and US without a problem and be able to collect some of the social services that Illegals currently can't get without it. A visa or green card is only temporary. Wouldn't they want dual citizenship?
They don't care a wit. They want to work for cash to send home, period.
As soon as they get their pay cut in the form of "legalization" you will see not only a huge revolt, but massive new amounts of illegals to undermine the new "guests".