This frequency of English localization issues is unacceptable

[Lauront]

We're just going in circles at this point. As mentioned, the Hythlodaeus shade is Emet's re-creation, after she had resolved not to tell the Convocation or her people outside of her own circle (not even 100% clear what she told them) about the truth of the matter to avoid panic or alienating Hermes. So "explicitly, textually", the only account of this motive as central is from someone intentionally kept in the dark over the matter - any discussion of it in private is referencing the outcome of them not changing their path, and this is also how the devs frame it in the Q&A. What is never addressed is what her people - once more, already divided over this matter - would've done with the full picture, had they been given it. What was her alternate plan to deal with dynamis had they listened? How does this comport with the interpretation Yoshi gives of her potentially acting so as to keep the timelines the same (underscored by her efforts to spare Emet in spite of knowing what he'd go on to do)? None of this is definitively answered, so I am afraid your "obviously" is not one to me and does not follow "explicitly, textually".

And I'm sorry but for her to be able to genocide her own people in that way, reduce and alter them to something even she recognises is not the same as them ("last of my kind", "my children"), so as to fit her view of what man "should" be like - a mankind that she only ever observes rather than lives amongst - does speak to her having a rather abstract notion of mankind; one she is quite willing to see subjected to all manner of suffering because of her surrender to this notion that it's "necessary". You are of course free to read into her motives what you want, but I am not really compelled to run with your narrative spin on this, and won't be - if the writers want to come clear up this mess they created in more definitive terms, then I will re-visit my views on the matter. Should they wish to double down on trying to justify what she did to her people, it'll be a good cue for me to take my leave.