The illegals aren't.
In my example, legitimate lawn services are charging $130. The illegals are charging $100, not $130, and making the same amount of money!
More, actually, because at $100 they've got more business than they can handle. You go right ahead and charge $199.95 -- I'm hiring Jose.
What if Jose has to start paying income taxes? What will he charge and who will end up paying those taxes?
THAT'S my point. Who really pays his taxes? The answer is, the consumer.
We get the point. Why is it relevant?