Let's think about this. You've been bagged and tagged since the day you were born.
....and probably before that, as most mom's to be get prenatal care. So they even knew when you were in the pipeline, so to speak.
Same as with anyone born here. Records of who/what we all are is known by the gov.
Further, immigration and naturalization is a federal affair.
The gov knows exactly who was born here, who was naturalized, and who has been issued a green card.
To think they don't, is just plain ig'nant, as they say in the 'hood.
Also, banking is federally regulated. Has been for longer than anyone reading these words has been alive.
If the gov tells the banks to unbank the illegals, all they gotta do is share that data with the banks so as to confirm the status of their customers.
With the questionable account holders asked for more info on their status.
Ie: to give people a chance to correct the record if a mistake in the data has occurred that fails to show accurate info on someone.
Let's put this in perspective.
Yes, records were kept. Decentralized. Private investigators and skip-tracers made a good living off the work and time it would take just going through those records.
ALL of them are now IMMEDIATELY available, if indexed. And moar are indexed every day.
Did I ever mention here, I'm not welcome in Canaduh? I was tossed out in 2006 - still living in the Buffalo area, and of the habit to spend time, time to time, in Toronto. This was three days off, and I was gonna go there, go shopping. Canadian stuff was a bargain back then, and the GST tax was refundable to Americans.
I had only been across the border maybe 300 times before. Never an incident.
Why, you ask, was I escorted back around the Immigration Canada checkpoint? Because they'd COMPUTERIZED their records - of plebes who were coming into their lovely collectivist Utopia, and who were not of the same habits as they like to see in the proletariat.
They had enacted laws that barred Americans who had EVER been convicted of an alcohol-related motor-vehicle offence (Canuk spelling) from entering. EVER. Without proof of "Rehabilitation" - which was, probably still is, an impossibly detailed and expensive record and application.
In 1977, I was ticketed and fined for "Driving with Ability Impaired" - a grey-area offense with a lower level BAC than was DWI in other states. This was Gnu Yark - I tested with a BAC of .07. Now, the drinking age was 18 in the Vampire State - I was legal there. Went to a local bar after work with a couple of co-workers and tossed down four weak Utica Clubs. That's a nasty regional beer, FWIW.
And drove home with a headlight out.
Went to Town Court, in front of Justus O'Pease. Who was not himself a lawyer - he was the head custodian of the local "Central School," the village, several townships, K-12. Big building; important job, but he was not an attorney.
He fined me $100 and suspended my license for three months. Then he winks at me and says, "Don't get caught, kid." He knew what I'd be doing.
End of story.
Except it was NOT. The state of New York, UNLIKE most other border states, willingly, eagerly, turned its whole criminal database over to Immigration Canada for such use.
Again, unlike most other states, my long-ago minor-misdemeanor traffic offense did not slip off the records after seven years. Someone SPENT MONEY to FEED that data in, electronically.
And then, there, 30 years later, I'm an Unrehabilitated Felon, trying to cross.
Because there is no grey area in Canuk law, now. Although I'd have been legal on Canadian roads that night. DWAI = DUI = FELON.
NOW, twenty years after THAT exercise in State Humiliation, it's SO much worse. Cameras everywhere. Plate readers. Phone trackers. That giant center in Utah that Mad Maxine Waters was so proud about, and obviously was not supposed to talk about...sucking up, collating, indexing data. So that when they're shown the (conservative) man, they can show the crime.