Voice
This Serpent is going to destroy everything! How is that to help? How is helping this creature attain it's goals going to do anything more than cause more pain?
You say I don't know you? Maybe so. But I know hurt and I know wanting to lash out and hurt those responsible. I know. But you don't ally yourself with something like this Serpent, who wants to see those you care for destroyed. Because at the very core of this? The Serpent itself is to blame. These System people, whoever they are, they might be desperate, they might be lying, who knows? But the cause is that thing, that thing in the sky that you're helping. That'll kill everyone you care for without a second thought.
You've endured for millennia? Then use that. Be patient. Watch. Wait. The opportunity for revenge? It will come, and you will be ready then. And it will be between you and those responsible. No one else. No innocents or loved ones in the crossfire.