The more you tell Naruto to give up on something or someone the stronger His resolve becomes, Jiraiya ones told Him to wise up on Sasuke, what was His response? That He rater be a fool than to give up on a friend.
Wish he did, if naruto died, it will weakened Konoha, and Sasuke will have even greater chances of destroying anything that stands for peace(konoha) and abuse(coughitachicough)