Flatbread, I hope you didn't think I was implying that you were talking out of your arse, I certainly didn't mean to. And I am not setting myself up as an expert on attachment at all. I said that because I have had FC in my life for 10 years and see the results of poor early infant attachment and early childhood trauma. As an adoptive mother now, I will do anything in my power to make sure that dd has a secure attachment to me and dh and I suppose to me, attachment theory makes sense and gives me a framework for what I can be doing to 'undo' the damage of my dd's start in life.
I accept what you're saying about attachment theory being a 'new' western notion. I know my parents, now in their 80s, certainly grew up in a time when children were less 'precious' and their cries wouldn't have been instantly answered. BUT I think the difference is that they didn't suffer actual neglect whereas most children from institutions, and children who come to be available for adoption, are emotionally neglected and in some cases physically and sexually neglected.
I agree that there are other family models that are successful. There are a lot of Filipina minders that work near me and most of them have children at home who are being minded by family. So I agree that the nuclear family is not the only way for a family to live.
I have several Israeli friends who grew up in kibbutzim at a time when children were reared centrally, away from their parents, and only saw their parents in the dining hall at meal times and for a couple of hours a day in the evenings. To a one, they would all say they thought it was a terrible upbringing and that they would never bring their children up that way (kibbutzim don't do this any more - children live with their parents now).
In A's case, I hope the reason she didn't want the nanny speaking Russian to her dd was because she wanted her dd to learn English asap and the best way to do that is total immersion in the language, although as someone said upthread I can only assume that once the mother was out of the way, the nanny was speaking Russian to her. If I was the mother, I would want a native speaker to be minding my child, not someone who spoke Russian. I can't remember, was it the op who said the mother wanted to create a distance between the nanny and the child? If so, that's the strangest thing I ever heard. My minder will be starting after Christmas when I'm back to work and my hope is that dd will love her and look forward to her coming and I'll be working with the minder to make that happen.