In my opinion, bitcoin does not affect the government, it is only difficult to control with bitcoin income, bitcoin to help the economy of the country stronger.
Bitcoins are very difficult to control in terms of income and taxes are up there in so many countries banned bitcoins
the governments want to control bitcoin so they can move the price up and down and they can do whatever they want with bitcoin. but the government realize that it is hard to control since bitcoin is not centralized and only bitcoin user that capable to control their bitcoin. and if they want to control bitcoin then they will need to control every server that connecting with blockchain. bitcoin here to help the financial freedom of every people and people can make bitcoin as their new source of income.