Fun au idea!
ok so obito canonically sees nothing wrong with genjutsuing people against their will right
and also canonically believes the world isn't real
and i don't know when he figured it out but he figured out that rin suicided and kakashi didn't mean to and didn't want to kill her yeah?
and like i said, we know from the mizukage that obito Would and Could genjutsu people long-term, and we know from the moons eye plan he sees nothing wrong with genjutsuing people happier
anyway to make a long story short, obito genjutsuing kakashi so he doesn't realize anyone's dead
Rin had a seal on her that would break if she went to konoha, so now she's wandering about the elemental nations healing people in her path, and its dangerous for her for konoha-nin to approach so kakashi shouldn't go looking! Minato and Kushina are on a long-term mission very far away, and kakashi won't see them for a very long time and shouldn't ask about them! Obito is on a SSS-rank mission, undercover and presumed dead, so kakashi shouldn't mention him to anyone else! (Luckily, he can see Obito because of the Special Sharingan powers, and he can even help by giving obito information and sabotaging some konoha missions! Anything for Obito and his Akatsuki!)
also since kakashi doesn't think anyone's dead, he's less intense about "those who abandon their teammates are worse than trash". so people on his team die more than they might otherwise.
and of course that guilt threatens to break the genjutsu, so obito has to reinforce it again
so kakashi quickly loses the grief at his teammates going on "forever missions we don't talk about", which makes him look pretty heartless to everyone else
what im saying is "Friend-killer kakashi" is a bigger nickname here
and Kakashi knows about the nickname but it's not like it's his fault former teammates are chosen more often for deepcover missions! ...and no one else is supposed to know about those, so he can't exactly contest it.
Obito: I have created a happy kakashi ANBU: You've ruined a perfectly good taichou is what you did! Look at him, he doesn't have anxiety and gets people killed!
i like to think that eventually, bc of the repeated genjutsuing by a sharingan whose other half is in kakashi, he eventually starts auto-correcting himself. like. there could be a dead body in front of him and depending on the wounds kakashi could see they were "injured", but kakashi could also look at a clearly glassy-eyed body in front of him and go "why are they sleeping on the street?" completely unironically
(tbh i really want to see a scene where others slowly come to the horrified realization that kakashi's acting so heartless bc he's in a genjutsu and can't recognize death)
team 7 kinda thinking "weird flex but ok" whenever kakashi tries to impress on them that if they fail their missions they might get sent on a forever mission which is very easy but they'll never be able to come back from it, and yeah kakashi jokingly threatens to send them on "forever missions" if they can't learn teamwork, until one day naruto asks where the shinobi on the "forever missions" are sent and kakashi answers "The pure lands! where there's no war and missions are easy..." and the genin are all hit with the sudden realization that sensei is not right in the head.
(and then a few minutes after that is the realization that the threats to "send them on forever missions" mean sensei has been half-seriously threatening to kill them)
im a simple man. i see kakashi's history, i think "i want that man's mind to snap like a pocky stick"
I have been thinking about this since I got it.... The absolute horror kks would feel if he ever realised he was in that genjutsu.... The way he'd break.... How everyone around him would doubt his sanity and trustworthiness bc surely someone can't be controlled by a genjutsu that long.... Man
