"formula is NOT harmful"
It is for SOME babies!
Hospital admissions for infections, respiratory disease and gastric illness are higher for fully and partially ff babies than they are for breastfed babies. SIDS is higher in babies who are not breastfed. NEC is higher in preterm babies who are not breastfed. And NEC sometimes kills babies. 
If babies are deprived of the protective elements of breastmilk they ARE going to be more vulnerable to illness. The added immunity they get from their mother's milk isn't 'extra' - it's there to compensate for the fact that babies are born with an immune system which is undeveloped compared to older children and adults. Babies who do not have this will be more vulnerable to infection.
Cory - in the 1950's average family size was much higher than it is now. It was before the days of the pill. It was during the time of unsafe abortion.
Yes, women were younger and thinner when they had their first baby, and I'm sure that makes a big difference. Doesn't take away from the fact that for HEALTHY women in the UK today, (giving birth outside of CLU's) the emergency c/s rate is about 1 in 20. To me that seems pretty good.
BLUESHOES - it's really unhelpful to imply that the views that ff is 'child abuse', and that c/s is 'wrong' are common currency.
They are not.
If you challenge the view that formula feeding is harmless, and that the rising rate of emergency c/s is not something to be celebrated, you shouldn't be accused of believing that ff is 'evil' or 'abusive', or that c/s births are not equally as special and important as vaginal births.
And yet that's what people do in these debates all the time. They try and polarise the issue in the most unhelpful way possible. Constantly using straw man arguments.
"there is some mythical hierarchy of births with natural at the top, epidural in the middle and c- section at the bottom."
But in medical terms there IS a hierarchy, with the 'best' births being the ones that end with the healthiest mother and baby. And by 'healthy' I include emotional and psychological health in that equation.
On a personal note - I have never had a completely uncomplicated birth. My 'best birth' was the one which resulted in me feeling best afterwards, and with a baby in very good condition. The birth which involved lots of injury to me and my baby (my forceps birth), and difficult breastfeeding was not as happy an experience as the other, though that doesn't mean I love my dd any the less, or that her birth was less important to me than the births of my other children. I'm sick of people trivialising birth injuries. I have only given birth three times in my life and they were the three most exciting, life-changing days I will ever have. I will remember them until the day I die. I think EVERYTHING should be done to optimise the experience of childbirth, to make it as safe and healthy and satisfying as possible.
"It is fantastic when genetics or luck allows you to have an easy natural birth"
As someone who had 'high risk' pregnancies (involving cerclage, huge babies and gestational diabetes) I can tell you that what made my labours safe and bearable wasn't 'luck' or 'genetics', but a fucking fantastic midwife who I knew and trusted, and brilliant care. Which, as I have pointed out on this thread and which people seem determined to ignore, are often the things which are missing from people's experience of vaginal birth.