Its a war and both sides are fighting for the right side. Otherwise there won't be a war to be fought. The whole thing is absurd when reviewing their human history as a whole. Eren's struggles, their pasts, and the current, are just few episodes in the long line of their world's bloody history.
Hange was right about it being an endless cycle and it doesn't necessarily need more than "they hurt us so we should hurt them too" logic. It's even ridiculous to do the opposite and be forgiving after all the pain the other side had made you go through. There are no hero or villains here but a massacre orchestrated to be a lovely tragic story.
Since the season 1, we are made to believe there was a hero to support to and the author dispels that notion with the recent development. This is what makes the series entertaining and keeps readers engaged because it provokes fundamental questions about how we also think as a society and as an individual living in a society.
That's right, but there are also people who know that the other is not to blame for the mistakes of their ancestors. For example, the girl who was saved by Sasha, and appeared in chapter 109 giving a lesson to Gabi who is beginning to open her eyes. And that kind of thinking is what can break that cycle of violence (the girl doesn't know yet that Gabi killed Sasha, though).
To know they are not to blame for the mistake of their ancestors is a difficult conclusion to make. We can judge them so easily because we hold a different God's eye viewpoint about their stories. They judge who to blame based on how they were oriented with the world and though it may be absurd sometimes to comprehend their logic, it is just them adhering to a reality they have lived to believe.
In short, I only know what is wrong based on the information I have collected and comparing it to my cultural upbringing as what is and should be. This is where empathy kicks in. It's what these people need to end the cycle I believe.
Exactly!