It might be wise to look at the after effects of “Alabama HB 56, titled the Beason-Hammon Alabama Taxpayer and Citizen Protection Act”.
We should examine the effects if that law on former employers of immigrants. What was the real economic cost to Alabama? How many citizens took the jobs, how long did they last in those jobs?
From what I understand agriculture was significantly disrupted. The only thing that kept food prices from skyrocketing was that Alabama could import food. Thus if the entire US is put under such law it could be devastating for lower income people, due to rapid escalation of food costs.
There will be significant unintended economic fallout, the costs of which will be significant. Therefore, the total costs should be thoroughly vetted prior to any action.