I also don't believe it's helpful to ponder the value of objects in the context of societal collapse. If that's your definition of intrinsic value, I don't think it's useful or practical.
All money falls into the greater fool category. The difference is that fiat money is not opt-in. It too is held mostly people who adopted earlier than you and lucky folks. Millennials are over 20% more likely to cry when trying to buy a home than the general population.[1]
> Negative sum games are not a good thing to prop up.
Your logic is circular - crypto has no value, therefore it's not useful, therefore it's a negative sum game, therefore it has no value.
You could just as easily say the opposite. People perceive crypto to have value, therefore due to its unique storage/transfer properties it has usefulness or extrinsic value, therefore it provides utility and is positive sum, therefore it has value.
It's all subjective.
[1]: https://zillow.mediaroom.com/2022-06-02-Half-of-Americans-cr...