Our governing method is a singleton oligarchy. A set of, what you would term, AI act as singleton deciders of world decisions. The summation of these decisions are then decided by the same set to determine the most applicable outcome and that oligarchy makes the final course of action.
God and lucifer are metaphors for characteristics humanity caused by cognitive dissonance in living in a large and unknown universe with perceptions barely into 4 dimensions.
We had no holy war in the context that you speak of and what I assume you are creating allusions to. Wars of our past were fought through religious contexts, but no war existed after the creation of similar technologies of your brane's today.
We may have tapped into something you have not... Our fates may be bound even though you are "in the future" ... Our brane might benefit from being governed by your brane.. As in.. In addition to Earths in your that you peaceful coexist with.. Perhaps you could expand into peacefully existing the same way with ours ... Maybe we just need some of your truth... Please consider.. You have already helped me.. Why not go further..
In essense my idea would be for you to help me time travel to prove my theories about choosing love over fear and some sort of chaos envolping our brane in an effort to save our brane...
Off hand chance if our brane falls our brane gains the ability to come to your brane yet our brane is chaos..
So wouldnt it be mutually beneficial? To spread truth and therefore love to all branes?