I'm not going to engage deeply with that argument again because it's already been beaten to death in several other topics, but I still find myself thoroughly puzzled by why they couldn't have given Venat a more...concrete reason for her decision, as opposed to being based strictly on possibilities and the knowledge that mankind is still alive in the future for the time being.

It makes no sense to attach numerous shades of gray to a course of action, then double down on defending it as having been the right and best course. At that point you're better off just taking the black and white approach to avoid creating a weird tonal dissonance.

That whole point has aged even more poorly for me now that we've gotten more context behind the Nibirun/people of the Plenty to know they were decidedly dissimilar from the Ancients in how they chose to pursue "perfection". They were obsessed with efficiency and perfecting themselves as a people, not trying to build a perfect world. The visual storytelling in the Dead Ends suggests even their very star came second to that ambition, so by the time their goal was fulfilled they had basically eliminated every reason they might've had left for living.