That world has always been a hallucination at best and a cruel deception at worst, but it's never been possible and never will be.
> Bitcoin was never adopted as a currency
It was and it is, it's not a central bank currency but the promise of BTC is the opposite of that. BTC is officially tradable in the US, you can exchange it for dollars to pay your taxes.
> so there was no way to anchor its value.
The promise of BTC has never been "anchored value"... it's always been a "to the moon" scam.
> It's still possible that the US government could... anchor the price of BTC, the whitepaper ethos could find a foothold.
That cannot happen without invalidating everything written in the white paper, in other words that wouldn't be Bitcoin anymore and nothing like that could function in the current financial system.