At this point, Thorfinn probably feels like that one kid who is excited to do a research project, only to find that his entire group is lazy and he has to do all of the work.
It is noble to strive for a world without violence, without slavery, without pain. But unfortunately, we cannot seem to commit to that. Our society is stunted - we teach our children the wrong lessons, which they then grow up teaching to their children. We reward people who gain power by force, believe their lies because it’s better than admitting that maybe we made a wrong decision.
Our society is like a broken leg not set properly, causing it to grow crooked. And if we work to fix this, how would we do so? Would we need to break it again to fix it, doing the same amount of violence we tried to prevent? If we travel to a new land, are we not bringing our sins with us?
It is a question that, more than a thousand years after, we have no good answer.