Rethink your ideas, you are very wrong here.
It is a fantastic escape from debasement of fiat, and always has been an escape from the perils of fiat currencies. It was created for this very purpose in 2009, and has absolutely achieved this goal. A 2019 $ vs a 2025 $ are significantly different purchasing power. Yet a 2019 BTC vs a 2025 BTC shows remarkable capital appreciation. You can pick any time scale you like, and except for very specific edge cases, it has in general been a great hedge against debasement of fiat, and will continue to be.
I have been able to preserve the purchasing power of my savings for over a decade now, and still keep buying every week.
Why would this be any different the next decade? (beyond the attenuation effect from more capital flowing into the space?).