If they were atomically identical copies, they would be literally the same. Any idea of “difference” would be completely false. That’s the difference here, these (NFTs) are by all means atomic copies. They aren’t close to the same, they ARE the same.

If we could make atomic copies of the Mona Lisa it would surely drop in value… scarcity is what causes works like the Mona Lisa to be valuable. With an NFT there is no scarcity because unlimited duplicates, each as real as the original, can be produced for nearly free.