This is economics. Let's say supposedly they ban Crypto in most countries. We only need one country to support it and "this country" would realize there is a lot of money to be made and bitcoin would help their economy immensely (either tax exchanges, trades, mining etc.), so it's just not realistically possible in this money-driven world. There will always be one that will see benefit in this, because in the end it's all about the $.

What is funny though that everyone in crypto says, fuck the banks, they are scammers, they need to go, but if you think about it, bitcoin succeeded because people saw the easy way to become rich. Like the banks, everyone are the same.