Them being China in my comment. As China is increasing it's influence across Asia, via the Belt and Road initiative, as well as around the globe, it holds increasing power over the economies of the various countries via development, and now is creating markets for oil/energy denominated in Yuan, not dollars, and backed by gold.
While I didn't propose they might ban exchanges in other countries, they certainly can assume much power, perhaps even direct control of such through economic influence.
And deleting the internet isn't necessary to end crypto, at all. Merely preventing exchange of crypto for fiat, or any other physical asset, which is well within the powers claimed by governmental regulatory agencies, is all that is necessary to do so. Also, a power outage is all that's necessary to prevent access to crypto.
Within China, at least, the internet is highly subject to both censorship and propaganda/fake news. It is difficult for me to conceive of the internet being immune to regulation. I expect that the appearance of an unregulated and uncensored medium has created the expectation that it is, while in truth there are not only means of crafting programming that precludes given mechanisms online, there are the physical servers, other hardware, and including electricity itself.
If you control the software, hardware, and electricity that people have access to, which China certainly does, or can, for it's citizens and residents, then not only cryptos, but any protocol or program is utterly subject to such control as they desire. This is true for every country in the world, and not only China.
Just because such control hasn't been visibly exerted does not mean it isn't being cryptically, or cannot be.
You're correct, but why wasn't it banned earlier then, I truly think some governments like the disturbance crypto is causing. Especially Russia.
And if we think like you tell, well the world is doomed then...
I reckon that failing to keep the reality of circumstances in mind makes one subject to them, and rather than giving up because we could fail, continuing to conduct our affairs as best we can in those circumstances, while continually seeking to improve them, will be the only way to succeed.
By knowing what we are up against, we can conceive of surmounting such challenges. Mesh networks, IPFS, and cryptos themselves are all attempts to do exactly this, and had Satoshi Nakamoto not realized the inherent problems with fiat currency, BTC would never have arisen and potentiated a mechanism to counter it.
The world was doomed to fail to get free of fiat, until it wasn't anymore. The situation hasn't been completely resolved yet, and we have more work to do.
We will not be doomed until we quit surmounting challenges. All of the challenges I point out are being surmounted now, and in addition to the protocols and means I mentioned above, 3D manufacturing, solar, and other personal power production means, and much more besides, is continuing to improve our chances of creating a free world.
It is unwise to think we've won, when we are only winning. We need to keep transforming currency, cryptography, and all of the technologies above mentioned, in order to achieve ultimate victory over banksters and tyranny in every form.