I'm sorry, but I do not think I understand the idea why and how Studio Ghibli is being "ripped off" in this scenario.
As I've said, art styles are not considered copyrightable. You say I'm missing the point but I fail to see why. I've used lack of copyright protection as a reality check, a verifiable fact that can be used to determine the current consensus on the matter. Based on this lack of legal protection, I'm concluding that the societies have considered it's not something that needs to be protected, and thus that there is no "ripping off" in replicating a successful style. I have no doubts there are plenty of people who would think otherwise (and e.g. say that current state of copyright is not optimal - which can be very true), but they need to argue about copyright protections not technological accessibility. The latter merely exposes the former (by drastically lowering the cost barriers), but is not the root issue.
I also have doubts about your prediction of stagnation, particularly because you seem to ignore the demand side. People want novelty and originality, it was always the case and always will be (or at least for as long as human nature doesn't change). Things will change for sure (they always do), but I don't think a stagnation is a realistic scenario.
As I've said, art styles are not considered copyrightable. You say I'm missing the point but I fail to see why. I've used lack of copyright protection as a reality check, a verifiable fact that can be used to determine the current consensus on the matter. Based on this lack of legal protection, I'm concluding that the societies have considered it's not something that needs to be protected, and thus that there is no "ripping off" in replicating a successful style. I have no doubts there are plenty of people who would think otherwise (and e.g. say that current state of copyright is not optimal - which can be very true), but they need to argue about copyright protections not technological accessibility. The latter merely exposes the former (by drastically lowering the cost barriers), but is not the root issue.
I also have doubts about your prediction of stagnation, particularly because you seem to ignore the demand side. People want novelty and originality, it was always the case and always will be (or at least for as long as human nature doesn't change). Things will change for sure (they always do), but I don't think a stagnation is a realistic scenario.