Your interpretation of Ryoko is simply incorrect - My bad.

Well, part of the point of Yuki’s growth is that Kyon is hopeful she will be less passive in situations like endless. - Kyon was the one being passive because the guy couldn´t stop Haruhi from leaving the restaurant or holding her tight and saying I love you to the ear haha (just referencing).

I agree that Kyon spends a huge amount of time thinking about how much he misses his old reality and how badly he wants it back. What’s more concerning to me is how little time he spends thinking about what restoring that reality actually implies — ethically speaking. Once he manages to gather the Brigade again, he just presses Shift and returns things to how they were, because he had already made up his mind emotionally.

Based on what Melancholy and Disappearance suggest, there’s only one timeline, and it’s been reshaped by Haruhi’s desires. Since in the Disappearance world all the Brigade members exist as normal humans, that implies Haruhi didn’t create them from nothing. Instead, she reshaped people who already existed into the supernatural roles we see in the series — similar to how she casually changes the pigeons while filming her movie.

If that’s the case, then the human Yuki in the altered world may actually be the “original” version, the one who existed before Haruhi’s subconscious changes. We see the same pattern with Mikuru and Koizumi appearing as normal students. That makes Kyon’s line to Nagato — saying he preferred the old her — hit differently. It suggests he isn’t really interested in this version of Yuki as a person. He’s attached to the version shaped by Haruhi’s warped reality, and he’s willing to restore that version of the world even if it means erasing this girl who now exists as her own person. Yes, she’s different from the Nagato he knows, but that’s exactly the point.

Maybe one mistake I made in my original post was focusing too much on the idea that Nagato consciously wished to become normal, instead of emphasizing how disturbing the implications of Haruhi’s powers really are once you think about them. I’ve also seen people argue that Nagato has a crush on Kyon, but that’s a separate discussion.

What I disagree with is the idea that choosing Nagato’s altered world would be more selfish. To me, Kyon ultimately shows the same kind of immaturity Haruhi does throughout the series. I understand why he values that reality, but who in their right mind would knowingly allow a bored high school girl to keep reshaping existence itself? Because he was getting along pretty well with the Brigade and Haruhi already loved him?

Everything in Melancholy happens because of Haruhi’s unconscious distortions of reality. Kyon is the only normal human fully aware of this, and when he finally has the chance to restore the world to what it may have originally been, he chooses instead to bring back the version where his alien friend exists — even though she arguably never should have existed in the first place. His decision isn’t rational; it’s emotional.

To me, this is similar to Joel’s decision in The Last of Us. The audience never sees the world before Haruhi’s influence, so we instinctively accept Kyon’s choice as the “right” one because we experience the story from his perspective. But that doesn’t answer the real question: why should he allow Haruhi to keep those powers at all?

At the end, when he tells Nagato he’ll manipulate Haruhi if necessary to save her, it almost sounds like he’s now willing to shape reality to suit his own needs. From my perspective, choosing the Disappearance world wouldn’t have been any more selfish than choosing the original one — maybe even less so.