When are we supposed to stop fighting?

[Selvokaz]

I would 100% agree with this IF the cutscene with Venat did not make it very clear that she Sundered the world because the Ancients wanted to undo the damage done and bring back their friends stuck inside Zodiark. To go back to the way things were. Venat judged that the wrong answer and enforced her will on all existence.

And she was right to, again going back to mankind being as they were wouldn't deal with Meteion, or The Final Days, something the Acsians didn't know was caused by Dynamis or Meteion, Venat did nothing wrong.