I still don't think Bitcoin can survive a coordinated banking shutdown. But tbh I don't know much about the global banking system. There may be leaks around the world that allow flows into the corn.
Discussion
Hmm.. that's an interesting thought, what do you think would happen?
If there is no leak, then bitcoin relies on circular economy and black markets to develop. Possible but hard and no quoted price makes it a problem.
If there is a leak then there is a quoted price somewhere and the people in front of the leak make bank. Still difficult but it's then difficult for politicians to say they are successful.
The best is to have enough support within governments to stalemate political advancements while bitcoin takes more and more market share.
Absolutely not without strong and growing circular and parallel economies.
Right now most things have to be purchased with fiat, so we're inextricably tied to the fiat system. We can only break that yoke by building a circular economy that can exist wholly independent from the fiat system and regular economy.
Would that circular economy survive fiat lockdown? For now, no.