What is worth going to war for?
Answers for the beyond stupid question that the twins' father asked that they were too stupid to answer.
Not being enslaved and forced to fight wars for other nations.
Not having your wife and daughter enslaved and raped daily.
Not having your lands stripped of their natural resources and left a barren wasteland.
Not allowing a beastman god to drain on aether from the world killing it.
That is off the top of my head. How are the Sharlayans so insanely stupid as to think there is nothing worth fighting for?