Gentle Man to "Cruel Man"

After reading the passage by Rousseau, one idea stood out to me. She was was saying how many theologians believe that man is naturally evil and only seeks to do harm. She contradicts it by saying that "nothing is more gentle than man in his primitive state, as he is placed by nature at an equal distance from the stupidity of brutes, and the fatal ingenuity of civilized man. She further goes on to state that man, just like the rest of the animals is just trying to care for himself and tries to restrain himself by natural compassions from hurting those who threaten him. As long as the people remained with what they had obtained with their own ability, everyone was happy and had a peaceful life. However, when one started working with the other and realized advantages, that is when separations began. When competition began between men, that is when equality stopped and misery began. (Page 8 in the condensed version)

We can see this example come true in the avatar movie. The Na'vi people lived lived happily and peacefully depending only on nature for survival. There was no competition against anyone. We will consider the Na'vi people as one man who is satisfied with the housing, the clothing, the weapons, and the food supply. It seems like their world is perfect when "humans" are not present. However, when the humans come and begin to colonize around the same area as the Na'vi people, this is when all the joy and peace come to an end. The humans begin to fight for the Home Tree in order to take it over. This is where we see the Na'vi people go from being a naturally gentle group to become fierce fighters ready to kill. Here is the point I think Rousseau was trying to make. Although we see the Na'vi being angry and fighting to kill off the humans who destroyed their home tree, although the Na'vi kill them with anger, and kick them off the planet we don't consider the Na'vi people as being cruel and only seeking evil. Rather, we realize that they were just defending their land and their anger was justified by what they were doing. They would not be considered completely wicked people only searching for destruction, but instead they would be praised for their victory and success. Therefore, we are not evil trying to find a glimpse of good, but rather we are naturally gentle trying to defend and protect that identity.