I understand, I certainly could understand Naruto being upset and angry but saying you want to avenge someone who basically brought his fate on himself is kinda dumb. If Pain attacked the village and killed Tsunade then I could certainly understand the desire to avenge her but Jiraiya left the village knowing he was going to die and snuck into another village, where he was killed. He went on a mission and he died on that mission its as simple as that to me.