Baby had a stressful birth too and needs to recover. Keep offering the breast, not expressing and syringing it in, and baby will recover soon, especially if they are allowed plenty of skin to skin and are encouraged to feed often. My DS didn't feed for the first 24 hours at all after a traumatic birth and ended up bfing for 16m, weaning only after I became radioactive for a medical procedure. I was also given no help and awful advice in hospital, despite what the nurses and midwives say, they cannot remove your baby and give formula without parental consent. Don't let them lie to your friend.

Sadly, sounds like what went wrong is the medical system. Again.