EW EW! I just had a good idea for employer punishment for hiring illegal workers. Not only do they get fined, but they also have to stay in the same deportation detention facilities that their employees have to stay in til each and every illegal employee is deported.
The thing that is ineffective with current ways of dealing with illegal workforce is that only the employees are put in any hardship, the employers even with fines as they stand now, it's just the cost of doing business, not enough to hurt, and bigger fines would only cause them to raise their prices to cover the loss. They need to be "hurt" the same way their employees, by being detained til the deportations are all resolved, in exactly the same conditions, the exact same places even.