Realistically, it must be handled case by case. I’m no heartless beach. For a final end to the problem - there will be compromise.
That sounds good but that may not be impossible. They come here for the jobs. We could start by enforcing the existing laws. Punish to the fullest extent of the law employers who hire them. If the ILLEGALs cannot get jobs they will have no reason to be here and they will go home. Deal with the rest afterward.