a sotry let's say someone shoots your parents. enfrienzied by rage you go and kill that person. guess what you still go to jail for murdera bad friend he don't have a friend right now, his clan was kill By Konoha, oh but you would no do anything in his situation , you would chiken out.
A lot people from Konoha who clan were kill admired Sasuke because he doing everything in his power to revenge them.
Sasuke became what he is because of the, go read manga, you..