I suspect we'll see other states angling to see what kind of tax revenue they can squeeze out of crypto, rather than banning it. The problem, of course, is how to set up such a system. They can enforce it with the exchanges (witness the recent IRS request that Coinbase faced) and banks. It will be hard to cover all crypto transactions.

I see you haven't answered giblaz's questions yet. Valid answers to his questions would clear up much of the confusion about your arguments. Please answer his questions, and continue. How would G10 nations kill the crypto bubble by banning Bitcoin business by banks? Why is this a better move for crypto's future?