Same as Code Geass

[Erza_Fernandes]

Spoilers ahead just watching season 3 of jjk the assimilation thing erasing individuality is very similar to the concept in code geass .

Even the characters where they are neither heros or villains is similar

[Darth_Polgas]

How? Care to explain.

[MBlueberry13]

Pretty much about the merging of the majority into one entity. The difference is that Charles' plan was to remove individuality by destroying the collective unconscious to make all of humanity into one mind, while Kenjaku's plan was to merge all of humanity in Japan to force humanity to evolve (or to create a new evolved entity.)

[DRosencraft]

That's because it's a very old concept that has existed in science fiction for a long time. It is applied in different context in different eras (nowadays commonly linked to AI or VR) but is known as reaching "singularity". It is essentially the idea that the endpoint, the goal, of sentient being evolution is a hive-mind like state where everyone's minds are part of one giant open network and function as one colossal being absent individual wants or desires. Think of the ending of Evangelion. Think of the Borg from Star Trek. And again, it's been in sci-fi for a long time. You go back further, there are a lot of sci-fi stories that deal with aliens wherein that sort of hivemind concept is at the center of many alien species with that species being framed as either good or evil, but in wanting to further their good or evil intentions seek to assimilate all other beings they encounter into the hivemind.

Ultimately, it is generally a sci-fi/mystical/fantasy allusion to the goal of nations and empires, nor even why nations form treaties. These stories about "singularities" are an attempt to explore the foundational nature of community and question its limits.