One of the concerns I have is that they could take down the electrical grid or internet as a plan to bring in the global reset, etc. If that happens, having Bitcoin or other cryptocurrencies might lose their usefulness at least temporarily.
I recommend you to be concerned with your primary needs instead.
This idea might be out there already but is it possible to write apps that enable cell phones to directly connect to each other, forming a network off grid? Sort of an wireless Internet outside corporate and government control.
What you're looking is network topology such as mesh network. But the cell phone need hardware required to make connection (e.g. wifi receiver and wifi hotspot).