OK (Steps out from behind parapet) What is better for the baby? That has to be the first concern. We are not told how bad the woman's mental illness is. To put it bluntly, she could be anywhere between a person with Schizophrenia symptoms with multiple personalities and somebody with mild Depression.
So just imagine that you are the people looking after the mother's other 2 kids and that the mother is at the worse end of the scale shown above. You probably have a legal right to tell the doctors dealing with the baby's delivery how to proceed. They are probably the ones who gave the order for the caesarian delivery.
The next question is .....
Why is anybody else butting their noses into it?
Cheers,
Steve.
(Ducks back down)