Easy, people are told to play by the rules and the rules say "you can't play".What exactly is illegal immigration then? I wonder what about the current immigration policy that makes so many want to be illegal, rather than go through the proper system?
OTOH, a rational society should have no problem with competition, handouts are the problem, IMMO, health care, education and a lot of other stuff that Americans are made to pay by the government through taxes and then the benefits are given to those that should pay for their own, not have it given to them for free. Socialism is the problem. American socialism, peculiar as it is.