Bank already in war secretly with Bitcoin since 2010 from bad press about bitcoin, encourage government/federal bank to ban/regulate bitcoin, makes buy/sell bitcoin process complicated any many more.
They also use blockchain technology, offer various promotion/discount and promise lower fees to prevent people adopt bitcoin.
But i think what he said is just another bad press about bitcoin since various people/media already said bitcoin is scam, ponzi, fraud, failure idea or will die thousand times (
https://99bitcoins.com/obituary-stats/)
In America, the big banks basically run the country. In fact, many of the top officials in the Trump administration are from big banks such as Goldman Sachs. Big banks pay all the politicians to influence legislation. This is true for both political parties.
The point is that I agree that banks have a major influence on policy in America. They may try to suppress Bitcoin and other cryptocurrencies. They could succeed but we also see that over the years, Bitcoin has grown to be worth almost $5000 about a month ago.
I think Bitcoin will survive because it's a true grass roots movement that is worldwide and has momentum. At some point, I think banks will need to work with Bitcoin rather than against it.