Earlier quoted context omitted.
That's not entirely true. The law can make crypto currencies illegal and put them outside the banking system. The US government did this with online gambling payment systems like NetellerC which severely crippled that industry. They also could potentially charge the founding developers and ICOs. Basically if the law makes it too difficult and non-convertible to real currencies and mainstream goods and services then t…
Yes, and the more such laws a country makes the less relevant that country will be in international commerce. It's very hard to outlaw progress, it will simply route around you, there are many historical examples of this.
And while it's hard to outlaw progress, it's also very hard to identify progress before it happens, and even then you can never be sure whether people won't go back to the previous system.