What is a shinobi? Hashi gives the most accurate definition. "The one who endures" - for his goals.
Sasuke has sacrificed everything to avenge his clan (more than Naruto could ever dream of), his chill life in Konoha, his friends, his sensei, his everything. He dedicates his every second honing his skills through training or real time battles with kage level opponents, and constantly putting his life on the line.
All of this for what? For him? No! For his family and his clan. He is the real deal, which is exactly what a true avenger is... shouldering the pain of loss, which is why he owned Danzo's million lives and send him back to the grave
Sasuke has sacrificed everything to avenge his clan (more than Naruto could ever dream of), his chill life in Konoha, his friends, his sensei, his everything. He dedicates his every second honing his skills through training or real time battles with kage level opponents, and constantly putting his life on the line.
All of this for what? For him? No! For his family and his clan. He is the real deal, which is exactly what a true avenger is... shouldering the pain of loss, which is why he owned Danzo's million lives and send him back to the grave