look im not calling atem lives aus fixits because i believe some bullshit like if my otp stays together it will magically Fix The Story, im calling them that because imo atem staying is fixing the story. i love him with yuugi but i dont care who, if anyone, he gets to date if he stays, its not what this is about. its that his journey makes so much sense if he does.
so much of yugioh is about growth, and as yuugi&co were growing up so was atem. he was never this stagnant ghost, an echoing remnant of the past; he was always a living, changing thing, a teen boy trying to find his place in the world. aside from being inconsistent, it is simply cruel to end the story by saying that his place is to die, that his will means nothing, that the bonds he made with his partner and friends are only as good as memories, something to think back on and dismiss in every other way that matters.
and when i say him staying i also mean him getting to deal with the aftermath. i mean that his half-death and coming back from it is just another coming of age, that comes with growing pains like any other step forward. atem spent such a long time focused on duty, on the things he had to do despite his wishes, so what happens when all that shatters? what happens when, for the first time in his life on that podium, he admits to wanting something, and gets it? where does he go from there? he never thought he would actually get it; he came to egypt with the knowledge that he would move on, duelists pride and all.
so, what does he do? he could go anywhere, no shackles of fate or ancient instructions to keep him on their path; he can be whoever he wants. he gets to become an adult like everyone else. and that is terrifying.