Bitcoin is fungible.
Before we bring something to the Bitcoin ecosystem we should first ask ourselves why.

Why does this need to be decentralized?

Money is fungible and the decentralization makes it impossible for someone to take it away from you or to censor you.
This is not the case for NFTs. Yeah, your property rights can be recorded decentralized. But when someone (e.g. the government) takes away your house it is gone - no matter if you wrote it into your shitcoin blockchain or not.