The Democrats would never win another national election.
I’m okay with it.
But then other places would do the same thing, and that would start a chain of events that would ultimately destroy the United States.
A better plan would be to get the wall built, deport the illegals, and stop letting Democrats steal electoral votes (as they surely are) so states like California are actually contestable. They cannot usually win elections without cheating as has been proven time after time.