Not lost. DAMN sure on the front lines, but not lost. If the fed would announce that the illegals will be deported upon DETECTION, NQA, probably half would go back within one year.
The ones electing to go back would go the easy way. The rest would get the hard way. Immediate deportation, 100% forfeiture of all money and goods obtained while illegally in the US. Good enough for Americans that break laws, good enough for criminal illegals.