Step 1. Build the wall. Physical or Electronic, doesn't matter. So long as it keeps out the people it's supposed to keep out.
Step 2. Cut off Welfare Benefits and stop the practice of Sanctuary Cities. Enforce employment laws already on the books.
Step 3. Loudly and Publicly, send home the first few people that are caught in Steps 1+2.
Most of the rest will self-deport. What's left will be a problem of a magnitude we can deal with.
I'm curious to see what a country without 20-odd million illegals in it will look like. What I really wondering about is how all the hidden costs will shake out. The drain, for instance, on Welfare, Hospitals, Schools, Law Enforcement, and so on, is enormous. Lots of local governments and public organizations will get an unexpected surplus of cash, I'd think.
On a personal level, I'd imagine that wages will necessarily go up. Heck, just a cutback in the billions we spend on insurance for uninsured motorists, will be substantial, I'd think.
The elites will either learn to mow their own lawns and change nappies or start paying non slave labor rates.
There’s a huge drain on the infrastructure. Think of all the cars on the roads, schools that have to be built and houses that have to be built. Sure, it’ll be tough on the service, construction and general labor jobs for a while but that will be offset by the benefits.
As will prices for a while, to cover the increased wages and reduction in consumption. But the savings of public money will make it worthwhile. Even better would be a shift to the FairTax or something similar.
It will be very interesting. Remove 20 million, or even half that and watch rents go down and wages go up. Overall health costs will go down. Welfare roles will shrink. The criminal justice system will not be quite so overloaded and crime will go down. Beer and liquor sales will go down, as will legal drug sales. Numbers of school age children will decline, reducing overcrowding all through the education system.
You forgot e-verify. Also, many illegals have arrangements that they can subcontract from legal businesses.