Well, vampires do run the world of human affairs at the moment.
However….
Game theory.
The idea behind game theory is that mutually harmful actions will generally be avoided by parties. It doesn't make sense to try and spring a secret nuclear arsenal on your opponent who can just nuke you in return when attacked. The optimal solution is to reveal the hand and create deconfliction lines.
Likewise, as the balance of power begins to shift and murmurings of the tree of life returning begin to bear fruit… what is the optimal solution for those with the capacity to realize it?