Preys had no right to exist in the presence of predators. Even their sole attempts to fight back were an insult to the food chain. Their only right was to run away, struggling to survive another day.
That was what the children of the mana were for the Scarlet Eyes. The True Chaos was a superior energy, a natural enemy and predator for those inferior beings. The latter had also lost their God, so their only purpose was to become livestock now.
Of course, the mana had spread and had given birth to different iterations of itself. It also seemed to have attempted to create an existence similar to the True Chaos' progenitor.
Yet, how could a mere experiment match the True Chaos' God? The children of mana's inferiority was set in stone, so the long-haired alien couldn't waste his superior energy to wipe out such brittle beings. It would be an insult to his King and the God above him.