And even abstract financial instruments like mortgages, REITs, bonds, CDSs, CDs, shares of commodities, etc. are based on these fundamental things. Bonds are based on currencies--which are only worth anything if they're the primary denomination of goods/services with intrinsic worth. REITs, mortgages, etc. represent shelter. Commodities represent food, water, and medicine.
BTC represents... nothing? Energy loss? Honestly there's no analog. Snake oil is still oil, selling someone air--they still get air. And sure, you can still argue "well camgunz, even if it's literally nothing, if people want it, they'll put a price on it". But... isn't that really just super bad, like collapse of the civilization bad if it ever gets to scale? We really shouldn't be convincing people to turn their money into absolutely nothing. That seems very obviously not a good idea.
Or, to put it a different way, BTC isn't any less bankrupt because we sometimes grow too much corn. It's a complete non sequitur.