its not that they're ignoring the fact that the cryptos were destroying their businesses or stocks or the system of every nation's currencies,
Wait what? crypto is destroying what stock and what businesses?
fiat or crypto? or both?
gold or crypto? or both?
You're comparing mostly two different things here.
what would happen if the world abolish the use of paper-made money and adopt whole-heartedly the effectiveness of cryptocurrencies?
If governments would abolish physical cash, they would go with online services such as Venmo, PayPal, and Cash App. For some reason a lot of people think that online transactions automatically means the usage of cryptocurrencies. Definitely not.
what nations could possibly rise if theres no more fiat in the world?
It's unrealistic for you to think that governments worldwide would stop the distribution and usage of fiat lol.
the world may never be the same as today, are you prepared and ready for it?
Your idea of the future is quite far-fetched.