To be clear I don't personally see any value at all in an NFT that doesn't have legal IP rights attached. I think we agree that far.
However:
> it will immediately devalue everything associated with him, including the original NFT
It might. Kind of hard to theorize as to what the result would be. The reason I'm hesitant to jump to that conclusion is because of the timestampy nature of blockchains. It's not as if the market is suddenly flooded with forgeries and nobody can tell what's real. It's baked into the blockchain which one was first. In fact you might argue it would not be possible (economically) for Jack to do this in the first place since nobody would buy the second instance.