I thought exactly like you, OP, both before I gave birth and I continued to think like that after the birth of DC1.
It was only after the birth of DC2 that I realised what all the fuss was about re as little intervention as possible.
I used to be really defensive and say things along the lines of people not being expected to go through any other type of pain without artificial assistance - you take panadol for a mere headache; why not for the 'horror' that is childbirth?! etc, etc...
DC1 was induced, so I was strapped to the table to be monitored and therefore couldn't move around to alleviate the pain. I went straight from gas and air to insisting on an epidural, which only affected the right side of, so the left side was still in agony. Yet I still couldn't feel anywhere near enough to push, so he ended up being a ventouse delivery. This ended up happening really quickly, along with an episiotomy, since his heart rate dropped and we had to get him out.
And then, because he wasn't A-OK on arrival, they had to check him over properly, so we never had skin-on-skin after delivery. Eventually he was passed to me all bundled up - we never had that (what I now know to be) crucial skin-on-skin bonding. He was very sleepy and not interested in feeding whatsoever. It was probably around 10 whole hours before he showed any signs of hunger, and at that point he just couldn't work out how to latch on.
It took us weeks to get breastfeeding established from there, and only happened eventually through sheer determination on my part to make it work, down to going out into the depths of winter and the early 2009 snowfall, when he was days old to get hands-on advice and support. We eventually got there, but man, it was a traumatic, painful struggle.
Contrast this with DC2. Again, induced, but this time it all happened so quickly that I didn't even have time for panadol, let alone any single other form of pain relief. She came out totally unassisted, was weighed and then plonked onto me, went straight for the breast, fed perfectly and my milk came in pretty much the next day, instead of the usual 3-5 days.
It all couldn't have been more straight forward and problem-free.
There will always, always be a place for intervention and assistance, and there are no medals for childbirth so you should do what you have to do.
It's just that there is a very valid reason for pushing / making aware / promoting / whatever... natural childbirth, because assuming it goes well, it is so much better for all concerned - the baby, the mother, breastfeeding and lowest down the list of priorities, but on the list nonetheless: cost to the NHS/tax-payer.