I think Momo's handling the thing reasonably well. She has a lot of idealism, and it's naive idealism, but she also has a lot of respect for other people's viewpoints and dignity. And she has a lot of empathy.
And, just maybe, also a twinge of racism.
In saying "we shouldn't involve ourselves in human military conflicts," she's dividing the world into AI and Human.
Bubbles, formerly, divided it by nationality, much the way most humans who are in her own words "called to serve" do. So Bubbles was thinking of herself as a citizen in the context of a nation and national service, and Momo is apparently thinking of herself (and other AI) as a member of a class apart from human, subject to different moral rules and constraints.
This POV, while racist, isn't necessarily wrong - AI *are* different from human, in some fairly important and subtle ways, and the idea that they may be able to help people cooperate better than the history of the planet so far indicates humans by themselves do, at least doesn't start with direct contradictory evidence on the table the way it tends to start for all the many groups of humans who've started out by thinking that they are superior.
But it's probably unwarranted optimism, at least W/R/T most of the AI we've actually seen; they're people, and with rare exceptions such as Station and possibly Gary, seem to be much like ourselves; we haven't seen very many superintelligences. And if Gary's helping at all, then he/she/it is doing it in complete silence by manipulating events and memetics from behind the scenes, without directly communicating with the humans. Which is also racist (or perhaps solipsist; it's not clear that Gary directly communicates even with other AI) and smacks more of keeping us as pets than working with us.
Possibly-unwarranted optimism aside, there's no real evidence on the table yet that even such superintelligences have any kind of moral advantage, nor that, even if they do, they're capable of helping us humans leave some of our conflicts and problems where they belong in history's dustbin.
And yet, no evidence of the lack of such a moral advantage or capability either. Has humanity in the QC-verse created something truly better than itself?