How do you move a farm to Mexico? Those farms would still be picked, it would just cost a lot more. Everyone would pay a lot more for their food. You think a few billion dollars wasted on illegals on welfare is bad? (This is not an argument against illegal immigration but one against welfare, fwiw. I'm opposed to that entirely, not just for illegals.) Just try your proposal and see how many billions would be wasted raising labor rates that high. And that's to say nothing for restaurants, construction and other industries that would be damaged by this, raising prices that much higher for all of us. Instead of just wasting billions of dollars and sending a severe blow to our economy, why don't we just let the people stay and do their jobs as documented workers? If not, and you insist on spending billions to round them all up and send them home, can we then bring in 10 million more legal immigrants wanting to work to replace all the employees you just fired?