You can’t lose what you already lost and that is decentralization of mining activity (via proxy popular big mining pools). If you would want to keep mining entities decentralized, then you should incentivize regular Bitcoin node decentralization and adoption. But of course, that is not your view for Bitcoin.

I could argue that Inscriptions aided decentralization as more people had to learn how to run nodes.. indeed I helped set some people up and provided some early guides on the process which are available in my github repo. It also solidified taproot which was floundering since activation.