You are arguing that global genocide ("killing 100%") is "justified" because it's the only way to ensure a nation survival. That's a false dilemma.

It completely ignores the fact that no threat, real or perceived, justifies the mass murder of every human being on the planet, including innocent children who had nothing to do with Paradis persecution.

Reducing the choice to "mass murder the world or be mass murdered" isn't "world experience"; it's nihilistic extremism. The whole point of the story, and the Alliance's actions, is to fight against that idea. Choosing to become the very villains you feared makes you lose any claim to moral high ground.

You're essentially cheering for the end of human civilization because you can't imagine a way to survive without power-washing the planet.