As i remember naruto told hagoromo that he would end the curse of his sons so if he killed sasuke the curse would still go on right.. The only way for naruto to break the curse is for him and sasuke to come to a type of understanding without killing him so no killing intent for naruto got to say that because people said he did. Now i think hago gave sasuke the same speech as naruto but still he was ready to go down his path knowing the curse wouldn't stop if he killed naruto but he was ready. Now we got a naruto thats knows if he kill sasuke the curse on the world wont end and we got a sasuke thats willing and ready to kill naruto as he said and he would of but then he realized after he lost his arm he wasn't stronger then naruto because right before that he said he was the strongest alive after taking 8.5 beast but still for some reason that he couldn't get he was matched by naruto move by move
who was really using tnj and tryna cancel sasuke deadly attacks with his own and this was a naruto not a full power nor sasuke but even with the power of the beasts sasuke realized no matter what he would never be able to kill naruto and if he couldn't do that he couldn't take over the world like he was planning on doing and if he couldn't do that then what else was left if he knew naruto would never kill him but always be in the way of his plans if he took that path there was no escaping naruto will lol so he gave up...
Thats the reason i think he said it
who was really using tnj and tryna cancel sasuke deadly attacks with his own and this was a naruto not a full power nor sasuke but even with the power of the beasts sasuke realized no matter what he would never be able to kill naruto and if he couldn't do that he couldn't take over the world like he was planning on doing and if he couldn't do that then what else was left if he knew naruto would never kill him but always be in the way of his plans if he took that path there was no escaping naruto will lol so he gave up...
Thats the reason i think he said it