Earlier quoted context omitted.
No such licensing concept could work. The AI companies' argument is that what they're doing counts as fair use, so they don't need to abide by any license. If that argument is true, then such a thing wouldn't do anything, and if it's false, then such a thing is unnecessary, because they're already violating even the most lax licenses (e.g., MIT) by failing to provide the required attribution.
Can't one just literally say that AI is not allowed? It's not fair use when you're going directly against the license.
Isn't the whole point of fair use that it's stuff you can do even if the copyright holder isn't okay with it?