Humanity is not responsible for any atrocity and cruelty. It's all the big spider's fault. The epilogue takes place ten years later and contradicts the nigh-incomprehensible conclusion. The colonists have established utopia on faraway Eridani. Characters who weren't on the ship are somehow present.
Machines are evil.
So are ancient gigantic multidimensional alien space spiders. People are good. Everything is beautiful. Everyone is happy. I wish I were making all of this up.