Any conventional resistance to the Shivans seems likely to fail in the long term. But there are a lot of complications to that statement. Three of the first questions one might ask would be: are there unconventional modes of resistance - what did the Vishnans want from us, what role did they expect us to inherit? Are there levels of survival which humanity is prepared to accept in order to endure? And is it necessary to secure indefinite survival to ‘win?’
We all believe it’s possible to live meaningful, full lives despite the inevitability of death. Is the inevitability of destruction by Shivans something we must escape in order for human existence to be meaningful or worth living?
Resistance is never futile. To use the Dark Souls analogy, while entropy or "the end" of existence may not be avoidable, it's no excuse to just keel over and die. Apathy is death, and despair of any hope of any sort of victory over the Shivans is a waste of brain power. One more day is worth it. If the Shivans want to play God with creation, reshape it in their image for some nebulous, otherwordly ends, yes, go down guns blazing with ol' Steele at the helm. Let it end in fire and noise and not submission.
But what if the Shivans are, "right?" about the Great Destroyer? Etc.
Irrelevant. You do not stop fighting one enemy just because another is on the horizon. I've hated that trope in fiction, because it's almost always flawed reasoning on the part of the aggressors.
Life fights. That's its nature, as antithesis to the Shivans long term goals of "stability" at all costs. The Shivans cannot be trusted as a benevolent force when no other faction considers them as such. We only have their inscrutable "word" they're doing this all for the greater good of universal balance.
BP goes to some good places headspace wise, and I'm sure it has many deconstructions ahead. But, "the Shivans are too powerful, they've conquered whole other realities and timelines, it's really pointless in the end." Is not something I'm willing to accept. Humanity Stands.
And I am also reminded of the following quote about the Vietnam war.
‘You know, you never beat us on the battlefield,’ I told my North Vietnamese counterpart during negotiations in Hanoi a week before the fall of Saigon. He pondered that remark a moment and then replied, ‘That may be so, but it is also irrelevant.’
Victory means many things, including living one more day.