How is this comparable to your government debanking you meaning that no bank, landlord, layer or job will touch you?
It's as close as you get to a complete shunning from modern society. You're reset to the cash you hold on you and keep custody of. And yes. In the U.S., the list that manages who can and cannot transact is centralized under OFAC. So it is at the whims of Executive whether or not any financial activity can be done with you.