Sorry genius, illegals come here for more than jobs. It's estimated we have 20 million illegals in this country. Of course that number hasn't changed in 20 years. But just going with that, do you really think there are 20 million illegals working in the United States?
You are on to my plan in a way. My plan is for Congress to get the balls to make being here illegally a felony with a minimum of 5 years in federal prison, that's just for the first offense. Give them until April 1st to be out of the country. Then we can get rid of border crossers, Visa overstays, and no need for a wall or expanded Border Patrol. The problem with your plan is you have to prove without a doubt that the employer knew he or she was hiring illegals.
Penalties for employers hiring illegal immigrants include criminal fines and loss of business licenses. See insights from LegalMatch's law library.
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Pretty hard to do with all the professionally manufactured ID's
High-quality fake IDs are readily available on the internet
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