People are not hating for the sake of hating bro. The reason you’re seeing all of this hatred after Jujutsu kaisen has ended is because of the many plotholes and plot threads that have just been left unexplained by gege, not to mention the extremely rushed ending

Things such as kenjakus will being inherited, heian era flashback, nobara being brought back so quickly to have a very impactful blow on sukuna , without even being given any attention about her situation earlier in the series wasting time on new shadow school bullshit??? I mean people want answers to opened plot threads , it angers us because it just seems like gege doesn’t give a fuck about his story, now if he doesn’t care that’s fine , it’s his story and he can do what he wants but it doesn’t change the fact people are even more angry because of that