Inflation is so destructive because of what it does to economic incentives - why work to create useful products and services to earn currency if someone else can just spend newly-printed units and bid up the price of everything you want to buy?
This effect is present in Bitcoin too, but fortunately it's something that diminishes over time via a known schedule.
The imaginary economic growth thanks to controlled inflation is what brought us to the information age. Using a deflationary monetary unit worldwide will just bring humanity back to neo-feudalism with the bitcoin whales being even crueler than the current elite who are at least kept in check by politicians. I sincerely doubt that bitcoin or deflationary cryptocurrencies will replace fiat altogether, it will just remain a complementary niche market.
Wrong forum pal.