I am more interested about what we are going to do to create opportunities for the 21 million Americans who are unemployed or underemployed. We don't have a shortage of labor; we have a shortage of jobs. If we really had a labor shortage, wages would be going up not down.
I would surmise we could make jobs of cleaning up Detroit and other slums while feeding, clothing, and housing these able-bodied, unemployed people (whether illegals or not). I think there is more work to be done than we have people willing to do it.