Trump does not have the stones much less the money and infrastructure to seize 11million people, Vigilante.
He doesn't have to.
He just has to establish legal conditions sufficiently hostile to Illegal Aliens to make them want to go home under their own power and at their own expense.
1. no jobs for illegals
2. no housing for illegals
3. no cars for illegals
4. no bank accounts for illegals
5. no money wire-transfers for illegals
6. no licenses for illegals
7. no schooling for illegals
8. no medical care for illegals
9. defund Sanctuary Cities
10. arrest the mayors and city councils of Sanctuary Cities and prosecute and jail them for Conspiracy to Violate Federal Immigration Law if they won't abandon Sanctuary status
Etc... etc... etc...
Whatever it takes to make all 12,000,000 Illegal Aliens skeddadle, and not come back, and to discourage others from even bothering to try.
Romney suggested Self-Deportation Lite.
We need Self-Deportation Industrial Strength.
Illegals pack up and leave of their own accord, and we haven't spent a single dime on a wall or on round-ups and legal proceedings and deportation-transport.
Win-Win.
We got by just fine without them, before they arrived.
We'll get by just fine without them, once they're gone.
And, if the Transition Period is a little painful - with respect to increased labor costs...
The sooner we get underway, the sooner we put the pain behind us, and are free of the infestation.