Small residential trade contractors nad big specialty contractors are the worst offendors in my industry and there are many that would grouse but they know what is coming.
Enforcement has gone way up in the last two years.
I have seen hundred man raids, so I know this issue first hand.
As long as their competition was subjected to the same changes and limits, contrators are an adaptive breed.
I have a friend who's not conservative or liberal. He hates religion, is rabidly pro-choice, thinks Republicans are largely rich pigs and ignoramouses. However, he loves his guns and has used them to kill an intruder...and he wants all illegals deported or killed.
But he's living beyond his means and the only way he can remodel his horrifically expensive and impractical house is to use illegal laborers - which he does repeatedly. Worse, I wouldn't say he abuses them but he's certainly not generous.
Many, many people are like that. Our economy is dependent on them to an unknown extent. Raise costs significantly - in any way - and you risk disaster.