Two things I can think of off the top of my head.1)The people who are hiring illegals don't want to pay legal wages or taxes.2)Once the illegal becomes a a legal citizen why would they work for shit wages when they could make much more on welfare. Want to solve the problem?Deport the people that hire illegals,confiscate their property,use that money to go after the next slimeball that hires illegals.Jobs will dry up,problem solved.