Our economy will go strait to hell if the bills pass. End of input.
Why?
I would think that it would cause something like adaptive radiation. Once they are gone we can get some of the American Bums off their asses and start working. Make some other law that forces them to work.
But I don't really know much about this part of the topic, so please explain as to why you think that.
Americans won't do those jobs for any pay. Farms hire illegals and migrant workers to do the jobs because they work for very little and work hard. Americans would rather collect welfare (which they do) than do the menial jobs. If the illegals and migrant workers were "removed" from the workforce, many businesses would not be able to afford to keep running.
Since the migrants work for about $2/hour (around here, at least), prices stay low. If businesses had to start paying minimum wage ($5.15 IIRC), prices would more than double. Additionally, most of these jobs would have to have VERY high wages to entice Americans to do the work, which would send prices through the roof.