I don't disagree with all of the pro/con arguments made regarding crypto-currency. I am, however extremely apprehensive of a bipolar society so I upvoted you for retaining sensibility about the way money systems work.
We mustn't forget that the government isn't a nameless machine....they are people from our society who were voted into power and used their station to create protective safety nets around themselves (padded with lots of money). This is true of the banks. It's true of the corporations. It's true of pharma. It's true of agriculture. Hell...it's even true on this site where there is so much heat around the early adopters (and bot writers and whale-makers and algorithm-gamers) who have hit huge reputation and can maintain their separation with promotion/6 day upvoting campaigns/other-bury-the-little-guy techniques.
We can't keep blaming the currency and decide to just make our own every time there becomes an imbalance of power. There must be a stable global reserve currency so that currency exchanges continue to feel they have a safe escape route, and we can all smartly hedge bets and earn through rate differences.