the question is, if the world's governments collaborate to create a blockchain network that is the same as Bitcoin and functions like Ethereum, then will cryptocurrency can still survive?
and since when do all governments collaborate with each other? we need to see how the world is divided, the countries have some little collaboration when it comes to money and concern politics, they wouldn't spend money and collaborate on some blockchain project, imagine russia, china collaborating with the US on some project of blockchain, do you think that would ever happen? I think not.
Another thing I think governments won't do anything drastic for bitcoin and altcoin, just think:
Have you ever seen rich people investing in things that they know would be a waste of time and money in the future because governments won't accept it? Of course there are some small cases where the rich lose money due to bad choice, but concretely speaking of bitcoin case if the rich are investing in bicoin Is because they know that governments have accepted bitcoin, the rich have influence and constantly talk to the politicians and governments