I could argue that those workers are not working exclusively for a single family residence. They would be working for a company who is contracted by various households. In your last example, you aren't really a business in my opinion... but regardless, it is completely irrelevant to this piece of legislation. You could do the same thing in that example with or without this bill.
The exclusion in this bill is intended solely to apply to citizens who unknowingly hire an illegal immigrant to do work for them (like lawn care.) Most importantly, this is the first draft of this bill! It's not like it is up to vote yet! That's the legislative process... they introduce a bill and discuss its flaws so they can correct it and vote on it.
If they can manage to tighten up the wording of the bill, then maybe I can at least not disagree vehemently... because there is a large chasm between intent and end result, especially when there's a buck to be made.
As it's worded now, though, it is clearly distinguishable that all three are a breach of the intent while still falling soundly within the proposed wording. It's just a risk that is taken when a loophole is put directly into a law: someone will find a way to exploit it.
Frankly, I still don't even see the problem with this exclusionary clause. (Once the language is tightened up a bit) With your proposed policy of a blanket law, people who don't mind helping a guy out who shows up at your door looking for a lawn to cut would end up in prison! How are you going to delineate this? Based upon fluctuating appeals to the morality of 12 jury members? That seems wildly unreasonable and unsustainable.
To carry on, this is a weak argument that bypasses my original point. If it is a minor offense that does no harm, it shouldn't be in front of a jury in the first place. The ones enforcing the laws (aka police and prosecuting attorneys) are allowed discretion for a reason. That would be why people are still getting warnings on traffic citations and charges are being dropped before they come to trial. As I said before and will now elaborate, increasing the max penalty for an offense will mean that big offenders can get hit harder, but it does not necessarily equate to a rise in laymen getting jail time... especially because there is likely no minimum sentence on such an offense.
I would imagine that if the sentence stiffening goes into place, a simple homeowner that hired an illegal to mow their grass would face the same end result in the future as they would now should the police and prosecutors not do their job and prevent this from even coming to trial: At worst, a slap on the wrist and a fine to discourage them from doing it again.
Just to add to the hypocrisy of this thread, Aaron Pena is a DEMOCRAT. One from Hidalgo county (very very southern Texas, actually bordering Mexico along the Rio Grande) and whom consistently votes for immigrant rights. So this story about how the GOP is hypocritical is biased beyond belief. Just an easy attempt at a cheap shot to an opposing political party.
P.S.
I'm not arguing about GOP hypocrisy. My argument covers no political lines and is strictly built on legal interpretation and its repercussions, but this is a good point to make to OP