But isn't that one of the hopes of cryptocurrency -- that it can survive a state collapse, because the relatively normal currency manipulation leading up to said collapse would be less (or not at all) viable? I feel like that was the spirit of OP's tongue in cheek remark and it's going over everyone's heads.
Also (this is pedantic) but many metals _do_ have intrinsic value (ex copper wiring or gold plated connections). It's slightly meaningful because (among other things, like its relative scarcity) has helped those metals be used as relatively stable currency in the past.
I've always wondered about this argument. It seems to me that a state collapse would be accompanied by the collapse of things that make bitcoin possible: electrical grid, Internet, mobile networks, and so on.
So let's say BTC difficulty drops 10x (China cracks downs on farms or simply miners moving to a different more profitable coin, who knows)
Currently this would be ruinous, as difficulty adjustments are every 2 weeks, so that would be 140 days until things get back to normal.
Also, why does our currency need intrinsic value? It represents a debt owed and can be exchanged for things with intrinsic value. The reason dollars, yen, pounds, euros, silver, metal and gold have value is both a social and a legal contract. Cryptocurrencies may have some social contracts that give them value but they lack the legal contract. That's why I think they are doomed unless they open themselves to regulation.
The demand for USD is cyclic in nature (IANAEconomist, I just made that term up), in that, I need money to buy food, my employer needs me to make them stuff, my employer's customers need my employer's product for their processes, etc.
None of these things, paper or earth metals, really have any intrinsic value. You can't eat gold. You can't put euros in your car. I guess you can burn money to keep warm, which is what happened to German Marks once people lost confidence in their currency prior to WW2.
The value of money is based off belief systems. When a very large scale economic or state collapse happens, the most important thing to have are a community of people around you who believe in each other.