>NFTs cannot have actual value unless people with the ability to enforce that scarcity cares about them.

You're confusing the hyperlink with the destination. The hyperlink has scarcity and is impossible to copy. You can make a new near identical hyperlink, but it's not the same as the original, the community says so and will ignore the imposter. The hyperlink are what people are buying and flipping. It has whatever market value other participants agree it has.