From what I have seen so far in this forum and other crypto platforms, most of us want fiat eliminated. But let us not forget that there are still situations whereby we can't use crypto except fiat like in rural places without computers or even internet facilities.
It is surprising that people want to destroy Fiat, despite the fact that in 90% of cases they themselves buy food for Fiat. Personally, I do not want to destroy anything. I wish the largest possible number of people and legal entities use cryptocurrency.