There's no such thing as a neutral viewpoint. Characters express their own views, not some "objective" abstraction.

The Watcher: 'Like Zodiark, Hydaelyn's purpose is a reflection of her creators'. They wished to look to the future, and not linger in a prison of the past.'
Y'shtola: 'The Ascians set in motion seven Rejoinings before we came to oppose them. How many more worlds would have been lost had we not placed our faith in Her? How many more souls living in the present would have been snuffed out for the sake of those long dead?'

Now you can turn around and say that the Ascians' counterpoint to Hydaelyn is unfairly represented in the current era. Which makes sense, because most people still alive would consider it to be a really uncomfortable viewpoint. That doesn't stop you from rooting for whichever side you like.

Quote Originally Posted by Lurina View Post
I'm unsure what you mean by this. You're told in Amaurot that they intend to sacrifice the "new life" specifically, not any members of their species or pre-existing creatures.
Your supporting quote:
Quote Originally Posted by Lurina View Post
世界を育み、それが再び十分に満ち足りたときに、いくらかの生命をゾディアークに捧げる……。

That when the time was ripe, and the world bountiful with life, they would sacrifice a portion of it to Zodiark...
The reason why I asked for a citation was because I knew that it wasn't supported by the in-game text. You knew this as well. The reason why the lore discussion in these forums gets progressively more distorted with each retelling is because people like sprinkling in partial truths on their fiction.