There would not be two classes of citizens because they would not be citizens. Anyway, it is not a great idea to leave them here in limbo. Sooner or later dems would get power and make them all citizens tog et the extra votes. probably cvote them extra welfare or reparations as well.
The only sensible solution is to send them back to their original countries. They have shown by their sense of entitlement and general disrespect that they don't belong here or deserve any more freebies from the American taxpayers. Adios assholes.