(snipped to address what was addressed to me)
Marplots
I don't think it can. Even in this simple set up, you have bound the mother to the child so that they are one entity. The mother would only act toward the survival of the child, since that is the child's only preference.
Where is the "moral" decision? Aren't you just forcing her to choose in a deterministic and hard-coded fashion by defining her as an automaton? Are we talking meat machines here, Asimov's robots?
If you construct a predetermined, programmable universe, you may have scientific morality, but it won't be authentic morality, will it?
Ah, you don't believe in a deterministic, materialistic universe? Well that explains why you don't find my argument persuasive. Indeed, everything I said relies upon the very fact that people are automatons in the sense that you can measure their preferences and predict their outcomes in the same way as you might predict the weather. I don't see how I can convince you of determinism though. Is there any reason you reject it?
I actually do hold with determinism and materialism. But I would also allow for complexity and emergence. It may very well be that morality is a higher order function that cannot be measured save for building the entire "machine" and seeing what it does.
It is not merely determinism at issue, but predictability. The people you created were defined as predictable along the parameters you created for them. I do not think these would be people at all.
The distinguishing feature that makes them automata isn't based on determinism or materialism, but directed and predictable actions/behaviors (in this case moral feelings). All we would need to do, to see if this were so, would be to find someone who chose differently under the same set of circumstances - is it your opinion that such a thing never or cannot happen? Surely it is possible even under materialism with a biology tuned finely enough.
In other words, are morals fixed? If they are, your thesis can proceed. If they are not, then the enterprise becomes an historical one and suffers the same measurement problems as any chance event in the past.
We can even play around a bit and see how sensitive our moral sense is. By altering certain key points, we may be able to induce a kind of Necker Cube flipping.
Let us ask, "Is it OK to have sex with a young woman you meet in a bar who seems willing to have sex with you?" and then see if we can flip the answer on moral grounds. (Let us also stipulate that you very much wish to have sex with her.)
"You happen to see her ID and it shows she is only 15."
"In her wallet, you find an authentic birth certificate and she's really 18."
"The birth certificate indicates she is your (much) younger sister."
"She tells you you are adopted."
"You are adopted, but DNA reveals you are her father."
"This is all a dream."
We could, if we liked, make this circular and the "measurement" you record would depend on where in the cycle it occurred.
And the question would remain: "Is it OK to have sex with a young woman you meet in a bar who seems willing to have sex with you?"
My contention is that enumeration will never get you an answer to this question in all the circumstances under which it might arise.