Earlier quoted context omitted.
And still no discussion on the value of pissing away our planets energy reserves, just to create imaginary points in a paranoid game. In one view, all the electricity burned to make bitcoins is a crime against the planet.
This is so misguided I can barely think of a place to start. Do you think the current financial system is optimal? The financial industry currently makes up 8% of the entire US economy. Do you realize that bitcoin mining hashes and the number of transactions they can process are not linked?
In practice ACH transfers within the United States are free and clear within a few days(giving you time to catch fraud). There's also very little technical barrier to transferring money abroad, although there is risk to the bank.
Credit cards are a different matter. They have to clear instantly so the merchant is guaranteed payment(excepting a chargeback). Bitcoin (usually) clears in an hour, or at least 10 minutes, so it's unsuitable for realtime financial transactions unless you build a financial industry on top of it to mitigate risk.