If Government has the right to ban plastic straws it has the right to ban bitcoin. You're not a bad person for drinking out of a plastic straw and neither are you a bad person for using Bitcoin. It is just that a behavior in aggregate is harmful and this in mind makes it defensible for government to forbid it, especially when a viable alternative exists. So the next time you get annoyed by that disgusting paper straw, think of the cryptogeeks who will be forced to use EMV when they would rather use the silicon based electric heater that is bitcoin.