Start with cutting off the taxpayer funded goodies to illegals.
Maryland had huge loopholes in it's driver's license requirements for ID for illegals drawing illegals to the state from everywhere, yet they suspend the driver's licenses for those behind on child support payments. The Federal Real ID law forced Maryland to stop giving drivers licenses to illegals, although the Dem governor proposed special state only driver's license's for illegals, but even Democrats were smart enough to figure out why that would backfire.
Montgomery County is apparently now chock full of illegals. I wouldn’t recognize the place today.