Dath ilan is somewhat puzzled by the Green response; these all sound like perfectly reasonable things to do but only after restoring a fair (if sadder and further from multi-agent-optimal) baseline as a starting point for further negotiations with elves.
They're cheerful about switching off elf-eavesdropping as soon as hats are in place.
Is it by any chance the case that philosopher-economist Torrans can provide a quick description of Green norms covering fairness and replies to Others' apparent movements away from your location of the fair point, ideally derived from scratch? Here's dath ilan's version, it's twenty pages of math but only the last four pages are the interesting part.
(Meanwhile in Civilization:
"What the ass is 'colonialism'?"
"Factionalized other-optimizing, sort of," says a younger and smarter person who joined the Rememberers relatively recently, but has tried as hard as she can to understand and take perspective on a past she never experienced herself.
"Like - giving somebody advice they actually find annoying and would rather that you not give them? How the ass is that a consideration while six-year-olds are -"
"Factionalized other-optimizing with coercion."
"Leaving aside that coercion isn't an equilibrium because I assume you know that, nobody's talked about coercing the takenatfacevalue!Bobbis into anything! If their society were actually as presented, we could just walk up and take the kids and they'd all think they were going crazy and not try to stop us!"
"Their perceptual-clustering concept of 'colonialism' will perceptually classify anything similar to their memory of 'colonialism' as 'colonialism', and react to it as if we'd gone in with intent to violently conquer the Bobbis and keep them as janitors while paying them only in food and water. They will, if they're anything similar to pre-Second-Enlightenment history, have conversational metataboos around seeming to conspire to violate the taboo behavior, and trying to persuade somebody that what's initially classified as taboo is an edge case that's not taboo will violate the conversational metataboo. Trying to go back and reconstruct the decision from more lawful first principles will also violate the conversational metataboo."
"Who the ass thinks like that while kids' lives are at stake?"
"US, two hundred years ago! Taken-at-face-value the physical tech track and the cognitive tech track aren't correlated systematically the way they were correlated in dath ilan's case!"
"Do you have any stubbedtoe options to give us?"
"Tell the Keepers to take the locks off and optimize over the Bobbis' cognitive patterns directly. The Keepers might not even need an infiltration team to do it covertly, they might be able to just Box* the diplomats here into giving them an open communications channel to their homeworld."
"Anyone can murder anyone but they probably shouldn't! Even if the Bobbis have no Keepers of their own and couldn't retaliate in kind, they haven't talk-controlled the minds of any children that we know about!"
"If they have our cognitive tech level from two hundred years ago, and even the Firstplaneters have no Keepers or systematic concern about infohazards, they're not going to have a concept of talk-control. So far as they're going to see it, we sent through a new, more 'polite'** diplomat to take things over once we understood that it would take a more unusual dath ilani to get along with the other worlds, she had a few gentle conversations with the Bobbis that went much better, and then the Bobbis agreed to cryopreserve or send through any remaining excess children in the system in exchange for a lot of high-value-density pharmaceuticals. You asked me for options, I gave you the one that would probably have the fewest casualties in real life.")
(*) A training exercise and test for medium-rank Keepers who are civilizational emergency responders; playing the part of somebody apparently imprisoned and awaiting preemptive cryopreservation for having deliberately destroyed somebody else's brain, persuade a single-point-of-failure jailer who doesn't know you're a Keeper into letting you out. Higher-rank Keepers can do it by only exchanging text. There's no standard form of the exercise for persuading somebody who grew up without dath ilani mental training, but it's kind of looking like even an average young dath ilani with no Keeper training would be able to improvise that.
(**) Spoken in a borrow-word from somebody else's language, possibly Green, since neither Baseline nor Anomalan contains a corresponding word, or, indeed, concept, for 'talk-control but everybody thinks it's fine and in fact they're expecting you to do that to them'.