To the beings in the underworld, there were three questions that had no value in discussions.
When will a bloodbath erupt?
Anytime.
Where will a bloodbath start?
Anywhere.
Who will join a bloodbath?
Everyone.
After one realized the meaning of these three answers, one would understand that be it a confrontation in a small, dark alley or random riverside, it would eventually turn into a war involving millions of creatures. Everywhere in this place was always a part of a bloodbath and due to this reason, when Rhode raised his weapon, there was no point in using exaggerated language to warn him that this would trigger a war.
Because war had already begun.