so this guy sees the future from1900-2000 and he sees all the horrible stuff in the future ww1,ww2, holocausts, nukes.
he decides that humans are pigs, that must be slaughtered before the future and more is done.
makes a machine god to do this, gets amnesia, and is horrific by his actions.
decides to kill the god.
at the climax right before the gods death the god tries to reminded him of all the awful shit he was shown in the future. that's is what the pape was a quote from.
here is the video of the ending https://youtu.be/3IrE5NBm7ok
honestly one of the best voice acting and writing in videogames