Sellouts.

WRATH spoke after all the 9 demon gods had finished swearing the oath. "Now that the unpleasant part is over. Let's get down to business. I will put the creation of the Coalition up to vote."

WRATH sent a tendril of energy into the dark orb at the center of the ring formation. The tendril contains an intent that was delivered to the will of the abyss. The will of the abyss then put the intent up for voting. All the demon kings and demon lords must cast their vote in a period of a minute. 

They can choose to vote for it or against it and no one will know what they voted for. Those who don't vote at all will be counted as voting against it. That means every dead demon king or imprisoned demon king like a certain comfortable throne, is voting against the intent. The intent will be accepted when two-thirds of the total influence of the abyss agrees to the intent.