I’m not talking about losing mindshare, I mean in the literal sense that transaction volume is necessary for Bitcoin to avoid an attack on the network. The incentive system that secures it is designed to increasingly rely on transaction fees increasing over time to make up for the diminishing pool of unmined Bitcoin that currently subsidize network security.

That largely hasn’t happened; transaction fees have dropped as it became a store of value and moved less frequently (and increasingly moved off-chain in tradfi rails).

Yeah, but what I mean is, if bitcoin went away tomorrow, why would anyone care? Advocates of cryptocurrency as currency, I think, have largely already gone beyond bitcoin in any case at this point, and the speculators could just move on to the next speculative asset.