I think the government feels threatened because this bitcoin has blockchain technology that can see all existing transactions and no longer need to use a bank so I am sure the bank is also threatened so that banks threaten the government and government feel threatened from banks and bitcoin I am sure of that.
So you are saying that the function of banks is just to see the existing transactions that is being made in the country? No, that is not true. Banks has a lot of functions in a country and it is important.
Banks are not threatened by cryptocurrencies, Why? Yes, Bitcoin and other cryptocurrencies are decentralized, it is anonymous but in terms of transactions, payment method using banks are still great. Cryptos still has tranasaction fees though most of the banks don't have, it is widely accepted while cryptos are not and it is more quicker or faster than cryptos.