It looks like there is a way to do the opposite at least. Which means it is possible to do this. The same process should work but it is a significant change. Backups would be key for such a monumental change. I would prepare things for a reinstall as well just in case things go wrong.
I’ve seen the admins on the Forum admit that they DO NOT oppose AI.
If that is the bar you have set I have some bad news for you. You will not likely find many projects where everyone involved completely opposes AI. Even Linus himself has used it and thinks it can be useful for some usecases. Are you going to abandon the Linux kernel as well? Or arbitrary apply your values to different projects?