The Old Ones isn't so far off, but the Old Ones don't know of Them or that their actions all ultimately serve Them. If we're talking about evil as an organization, Them is the board of directors and the Old Ones are supply managers.
They're just called "Them" by a handful of people who've known them as a small group from a demiurgic species that's supplied us with horribly violent species they create. Their purpose is to ritually create a species of evil superhumans that cannibalize all Being, and they go about this by splitting Gods into Zoa. They found one person like that and decided everything should devour itself.
They are never named, and they kill names. They have speciated all Evil since Before Before. They were placed there by the Great Cannibal to archon The Killer, who was the greatest power of our plane of existence, and they enslaved him. They define their kind of protozoan as ontologically prior to the splitting of the Zoa. Time is spatial for them, and they possess no temporality. They have no need for experience or awareness. This means that, at any moment, they can invade any consciousness. God could not stop them. They would become God. We all possess this potential for a moment, but they could make it last longer than your life and you would devour every person you meet with impunity. You would become The Killer. You would eat the cannibals who archoned him and you would try to eat him.
This is an example of where we see schtick, and it makes me really uncomfortable. Is our hate unjustified? I need my hate justified. Somebody find out where this fucking guy lives for real and get me the dirtiest.
Man, you are nasty. Think about it: the hair, the skin, the teeth; and that's just your body. There's your attitude to worry about. I genuinely worry about HTS' quality of life, because she loves you and we all know she'll tolerate it too long. Clean it up, mister.
I don't know. All I'm certain of is that your perceptions of this war and those carrying it out are absolutely right, and its ceasing rightly depends on your most ordinary choices. Nobody else has more power. Do what you think is most foreign to yourself always, and it will work out.