Can you explain how you see that happening?
By the time the system has reached mass adoption, we will probably come to find that there is a central entity with majority influence over it but the utility and infrastructure integration will have such momentum that changing will be effectively impossible. Fringe communities may be able to operate relatively independently, but the core will be subject to the most dystopian control and tracking system ever devised - Huxley and Orwell could not have imagined worse.
That isn't to say that life won't be improved in general - there will be major positives. However, an undercurrent of entrapment will pervade even if it isn't at the forefront of attention.
On the other hand, a currency which people are forced to use by law (legal tender for tax payments) will always have a huge advantage. So if governments decide to move to most transactions in the national currency taking place via cryptographically signed attestations involving government-provided keys, that will be a major move towards the kind of dystopia you're imagining.
I fully expect governments will embrace and utilize crypto to terrifying effect. Maybe it's time for Mars colonization?
That’s not going to change with a different medium. It may change the parameters that they can control (ie no inflation) but it won’t change the inequality.
The 51% of the network will consist of a small number of wealthy as it always has.
2. The end
Nothing technical there but it is a central bank backed digital currency that IMHO exists as a consequence of cryptocurrencies.
My 2 eCents :P