A few banks like Bank of America, JP Morgan and Citi Bank are now baning their customers from buying cryptocurrencies using credit cards of their brand.
Nobody should ever prevent us from buying anything with our own money. Honest people pay their credit cards bills at the end of the month or pay high interest fees, and now banks decide by themselves what you can buy or not buy!
If you think government has power you're wrong, the banks have. Banks choose who is the next puppet to "govern" to serve their own interest, and they decide everything.
Banks want to keep power by trying to kill cryptocurrencies but it won't work, people will continue to use crypto by exchanging goods and services directly, and people still have to possibility to exchange fiat to crypto from person to person (using localbitcoins or contacts).