Agreed. No federal funds, and roadblocks on all Interstate highways, curbing travel in and out of these sanctuary areas. If they want to cease being a viable operation for the benefit of their citizens, then the feds should shut them down form operating completely outside of their areas.
Let them starve and Ulysses Grant had the Confederates starve until they surrendered. What they are doing is against the best interests of the people of the USA.
I say end it over night. And no let up until they completely reverse these idiotic laws they have created to protect criminals and endanger the citizens of the USA within their areas.