You are generalizing all the Bitcoin critics as Statists who trust the government.
Stop falling for the Hegelian Dialectic which is being used against the masses to get them to accept a cashless society.
Ask yourself if Bitcoin was such a threat to Central Banks then why would Christine Lugarde, the head of the IMF praise cryptocurrencies such as Bitcoin?
If cryptocurrencies were such a threat to the Rothschild Banksters then why would the Prime Minister of Israel War Criminal Benjamin Nethanyahu(who was a vocal supporter of the Iraq War) praise cryptocurrencies?
https://www.thestreet.com/story/14421146/1/benjamin-netanyahu-banks-will-disappear-due-to-bitcoin.html
https://www.ethnews.com/netanyahu-banks-will-disappear-possibly-due-to-bitcoin
The state already has the perfect monetary system to stay in power. Why should the state introduce a less good decentralized system?
To control the opposition towards the monetary system they have control over.