If one day most of countries in the world ban BTC, will someone with a lot of money spend million or even billion of dollars to establish a whole country. In this country, you will exchange with BTC and other crypto. Will you leave your coutry and move to this 'wonderland'?
We can achieve that by buying a small private island and make it an independent country that accept bitcoin only.
Thats a great idea though we need much bitcoin donation to fullfill that plan.