I would start with doing with what we can.
(1) Health care only for US citizens.
(2) Schools only for US citizens and legal residents.
(3) Special jails with harsh conditions for illegal aliens who commit crimes.
(4) College aid only for legal residents.
(5) Direction to district attorneys to only pursue crimes against legal residents.
Imagine cutting state costs by a third, with the level of service to legal residents unchanged. Would that help?
Is there a way to have STATE laws against illegal aliens, and then a State ICE (or version of the same)? Something like fines for ANYONE hiring someone without legal papers, to the tune of $2000 per illegal per day?
If there was a state version of ICE that did some following up on this law, fining moms with illegal nannies, sweat shops, gardeners, etc., then there will be more jobs for Americans of all backgrounds.
There would be fairer contractor bids.
You could have work-to-study programs for the farmers: subsidize young college-bound people who work for a year on the farms and then get into state colleges.