"If there are a bunch of ascended formerly-human gods on some other planets, that'd change my thinking about how much Golarion matters in the next thousand years. I expect there aren't; what I've heard about the Starstone makes me believe it's unique within Creation. If Iomedae, Cayden, Irori and Norgorber are by far most able to intervene Golarion for some reason that won't apply to me and Pilar and anyone else who ascends if we kill Achaekek and blow away the Starstone protections, that'd also change my thinking. I don't understand precisely why you think the Worldwound would be easy for the gods to fix, but I have no specific opinion on that either way and it's not decisive in my reasoning: even if it's easy for them to fix, it would also be easy for one of them to use to destroy the world while everyone's exhausted from the godwar you propose provoking.
I am not very invested in arguing either specific question, which I am uncertain about and which I might better put to those history researchers you mentioned and/or to Dispater, but if arguing the object-level point while you wear a fancier headband would help convince you that there exist people in this world who can reason more clearly than you then that seems well worth the time."