And the so-called 'choices', in fact, are what Lann and Iophis want to tell Sachia, the key to solving the problem of racial conflict.
Namely— the so-called [sacrifice].
'Sacrifice' is the most noble action a wise being can make.
To establish a city of racial equality, for this vision, people must make sacrifices.
Non-human races must face the brutal reality, they have to sacrifice their hatred, and begin to stand with the human farmers.
Perhaps humans destroyed their civilization and slaughtered them first.
But the current social situation is humanity's absolute dominance, to struggle for survival and racial equality, they must 'forget' their hurtful past.
Otherwise, if only seeking revenge, humans will have no reason to stand with them.
Though they are victims, in the cruel and complex reality, for the future, they must make 'sacrifices'.
At least direct the hatred towards human nobility, and it must not spread indefinitely.
