They have companies here that hire them and the law states 3 type of id. What the law doesnt state is that they all have to be the same person. So they hire them.
I found a wallet at work with 3 ids in it from a mexican and had all the same name on them but not the same picture.
The goverment just inst doing its job!! They fine them enough often enough the companies will pick up on it. Get caught 3 times shut the place down and send the CEO to federal pen for harboring illegals.