I agree with you - I actually implicitly meant everything you said.
The crux of the matter lies with your last sentence: "They simply need to be desired by the market"
Ergo, the quality of an asset as a "store of value" (the point of contention I was addressing in my comment) is directly mapped to the desire. BTC's desire is insanely volatile, automatically making it a poor store of value.
My point is precisely that all assets used as currency are oftentimes intrinsically worthless. It's the demand - and the liquidity it provides converting to and fro said currency from other goods or currencies - that makes it a value storage vehicle. BTC, as a "value storage vehicle," is a very poor choice. Gold isn't.