Rebel you sound like a never Trumper that's close to tossing out the "yeah well he said mean things on Twitter" because everything he's been accused of has been debunked. I think everyone would agree that the things you're tossing out CAN happen but they're significantly less likely than your identity being stolen, for example, which can be catastrophic.
The two biggest obstacles to a BTC centric economy are:
1. human beings. We're corrupt and power hungry. What is going to stop it are bureaucrats and politicians. Right now that's the US government and the Fed, the two most powerful entities on earth. If they wanted a BTC centric world tomorrow it would happen by Jan 1 but they don't because there's enormous power and wealth in the current dollar based fiat system.
2. Everyone else. What we've learned from the past three years is that people aren't interested in freedom but rather they want security or at least the illusion of security. Everything you've tossed out as a reason not to move away from the current fiat based world falls into this category. You like the security of hard metals, of bank insurance covering your losses, of the government covering the bank's losses and this is where virtually everyone else is as well. People want security above all else, we know that definitely at this point and BTC represents something far less than cradle to grave government backed security.
Those two Ryan's those alone are why this will never go the way the BTC crowd want it to go.
A fearful society is a compliant society. That's why Democrats and criminals prefer their victims to be unarmed. Gun Control is not about guns, it's about control.