Peace must be something that benefits all parties involved. That means that a leader must act on the wishes of their people. Everyone is here to play a role and set aside their issues on the surface, but no one here cares to set aside their people's wishes permanently. That's why they play their parts.

[Lexa doesn't point out Keya's naivety again, but it seems to be a constant sticking point here. While some people may benefit or even desire that peace, they are one voice out of many.

And Keya herself lacks the sway to be an indomitable force.]