Board Thread:General Discussion/@comment-30662466-20180811011857/@comment-29325824-20180811124413

"the entire world being converted to a Demon Realm would result in the eventual extinction of both races"

What makes you think that? The entire point of both the DL and the setting is that eventually humans and Mamono would coexist. Females are Mamono, males are human. No true extinction of either side.

"so at some point humanity would be forced to go to war for its very survival"

Again, no. There are plenty of human nations that welcome Mamono (and the positive changes they bring) with open arms. It's just the highly fundamentalist Order states that fight back with violence and killing intent.

"Does this mean humans are using lethal force against Monsters in the war??"

Yes, all the time. It's the Mamono that refuse to use lethal force.

"I personally hate the thought of hurting an MG, let alone killing one. But is that what humanity would be forced to sink to in order to survive? "

Then don't. Just find yourself a Mamono to love and life your life happily ever after with her away from the conflict. I really don't see the problem here.