Fine, increase the fine for employing illegal migrants from $375-2000, to something more proportional to the damage they cause divided by the historical chance of being caught, and maybe we won't have to.

Over their lifetimes the usually use 100000 to 200000 in unpaid medical care, divide that by (number of deportations per year /the current (frankly lowball) estimates of 11 million immigrants), and you have you have you new sane(and frankly lenient) minimum fine

100000 / (36000 / 11,000,000) = $3.055 million per offense.

about 8000 times higher than the current fine.

Edit: and make the fine for leasing and lending to them to.