I think you are way underestimating the potential of bitcoin.
The key for bitcoin is exist and be durable.
If everything works out, you have a monetary system that is independent of any regime in the world, and will outlast governments.
I believe that we are all for Bitcoin but as the topic states,
"People Overthink Potential of Bitcoin" even in the medieval era, there has been some sought of government so stop thinking Bitcoin will outlast any government.
Even at this basic level, bitcoin is already ideal to just hodl till the end of time.
It's just a matter of what value it would be traded at.
You are right about that because we do read here in this forum how people are still hodling some coins/tokens with no value what so ever and Please this is not me equating Bitcoin to those but just stating that you can HODL your Bitcoin asset but what it will be traded at in the future is to our imagination.
Let's say USD as a world reserve currency has fallen and replaced by RMB, whos' to say RMB will last as long and won't make the entire global monetary system even more fragil.
At some point people would just want to hold something more durable.
Also I am a foreigner, I hold US stocks not only for the growth but also as a currency hedge. It makes perfect sense for me to hold bitcoin.
Even though I see that as an assumption, however, if it did fail what would your US stock amount to?
So my take in all of this is, let's just enjoy BTC as a hedge against inflation and not a replacement to the financial system