@hawkeye10,
You can't deport everyone for a lot of reasons hawkeye.
1. The cost is prohibitive.
2. Mistakes will be made and US citizens will be deported which should be unacceptable to any US citizen.
3. It violates the rights of people, both citizens and non citizens.
4. It will require a national ID to prove citizenship of every US citizen to come close to happening.
5. Police will be able to ask for papers of anyone they suspect of not being a US citizen.
6. Some families have children that are US citizens but the parents may be here illegally. What do you propose to do with US citizens that are not yet 18 if you deport their parents?
7. It will overwhelm the court systems which means the deportation would have to ignore current law.
8. You would have to detain everyone until they get a requested hearing and there are not enough places to do so without violating their rights.
And on and on and on.
There is no cost/benefit analysis that will show you can deport everyone and do it without mistakes.