If the 12 million illegals are granted amnesty, to do the jobs Americans 'will not do', what will many of that

Most Americans won't do those jobs because they don't pay a very fair wage for breaking your back all day. Why do that when you can make the same wage for a far less demanding job? If we automate production we minimize shortages due to holidays, worker fatigue, illness, and a host of other factors. And the icing on the cake: if there is no work for them maybe they'll go home!