Are you proposing to change the nature of Bitcoin from a peer-to-peer payment system to a museum of unique Bitcoin amounts? For what? So that it becomes impossible to actually pay them?

There are so many different altcoins that you can experiment with as much as you like. Some blockchains have wrapped Bitcoins. Want to do an experiment? Invite users to convert their wrapped Bitcoins into NFTs on one of these blockchains and see what happens. And let's leave the main Bitcoin blockchain fully functional for full use as an electronic cash system.