The way I see it, a labor culture that hires illegals as an ongoing practice, and government (local, county, state, and federal) that looks the other way are all engaged in 'inducement' under 18 USC.
Illegals aren't working mostly for immigrant. WTF? At one time WalMart was their biggest employer. Also, meat packers hire many, many undocumented workers. Then there is the legal B1 visa scam that is really the biggest threat to American workers.