I agree with the first point, but the second is fairly redundant. Bitcoin is a value transfer system much as the banks have value transfer systems in place betw

I agree with the first point, but the second is fairly redundant. Bitcoin is a value transfer system much as the banks have value transfer systems in place between accounts. Chargeback on a credit card is implemented at a higher level, based on a system of trust between the card processors and banks. There's nothing stopping you implementing an escrow service on top bitcoin or a similar irreversible cryptocurrency which is functionally identical to the current credit card system. It requires users to trust you, but then so does the current credit card system.