Foxfyre
One Sanctuary at-a-time...
1. Give the players (governor, mayor, etc.) one last (and highly public) chance to obey and facilitate Federal law
2. Arrest those who do not comply; charging them with Obstruction of Justice; Interference with LEO; Conspiracy, ec.
3. Transport them to far-away jurisdictions with "reliable" judges
4. Set high bail (or invent a "flight risk" excuse to deny them bail)
5. Expedited trials
6. Long-term imprisonment
...all within a matter of mere days or weeks passing between (1) and (6).
Set a severe example for the NEXT Sanctuary Klown-Kar to contemplate as Judgment Day approaches them, in turn.
Meanwhile... declare Martial Law within a given Sanctuary, bring in vast numbers of troops, and sweep the area clean.
Return the now-de-Sanctuar-ied jurisdiction back to civilian control Under New Management.
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And, while all that is going on...
1. give any Illegal Alien owning property in the US twelve (12) months to sell-off property and self-deport once registered
2. give any Illegal Alien without property in the US six (6) months to settle all business and self-deport once registered
3. start (metaphorically, in the law courts) crucifying employers found with Illegal Aliens knowingly on their payrolls
4. for any Illegal found on US soil after the six-or-twelve-month time limit, permanently seize their property and deport them
5. for any Illegal found on US soil who failed to register after a given deadline, permanently seize their property and deport them
6. reimburse their home countries half the expense of bulk (planes-full, ships-full, buses-full) return of Illegals to their jurisdictions
7. those who do not register and self-deport may never apply for legal residency within the U.S.
8. for countries refusing to take-back their citizens we either force-the-issue or ship their citizens elsewhere to whomever will take them