honestly his reason for holding on to the hatred is the only stupid thing about him, and by now he should realize that obito is in fact using him, as it is now known that he was not madara. Sasuke also fails to comprehend the fact that Itachi caught Obito sneaking in the village to murder the uchiha's anyways, I mean it's one thing to be mad at konoha, but to just solely direct all his hate in that direction is dumb.
The best thing kishi could do imho is make him good, or at least make him want to get revenge on obito and madara for making him and itachi their patsies.