"It really is a go with the flow thing, even if that flow means a shitload of drugs and an eventual cs."
Well - if you're willing to accept that interventions are always unavoidable, you're going to be listened to, and that the care you're going to get is always going to be directed towards giving you the healthiest and easiest to cope with birth. Good luck with that. 
"That's really interesting, sonia. Yes, perhaps we're starting to see the pendulum swing too far"
Oh yes - way too far.
In the 1950's the c/s rate was 2%. It's now nearly 1 in 3 births, and only a minority of uk mothers have a birth which doesn't involve instruments, episiotomy, augmentation or surgery. 95% of babies nationally are born in obstetric led units. Only 2.7% at home. I wouldn't call that the pendulum swinging too far towards natural birth.
"Anytime I mentioned it to midwives or the NCT lady they weren't against it per se just giving me lots of reasons why it wasn't as brilliant as it sounds and how long my laboutr would be etc etc"
It's their job to tell you of the risks of the treatment. You already knew about the benefit of an epidural: that it takes away pain in labour.
"Without interventions, half of us wouldn't be here, either because we or our own mothers would have died during or after labour, or we'd have died ourselves giving birth."
Even when the c/s rate was 2% in the UK in the 1950's the vast majority of mothers and babies made it through labour in good health.
"I totally agree with the poster who referred to partners/husbands who send emails or FB updates out after the baby is born in which they comment on the mother's lack of drugs as being commendable."
If they believe their wife has gone through 10 types of unpleasantness in labour with the same intention as she had in pregnancy - to avoid exposing her baby to things she believes will harm it (which is most people's motivation for avoiding pain relief - they feel it's better for the baby) then why the hell shouldn't they feel proud of her?
"Can you imagine a woman posting on FB: poor DH has passed a huge gall-stone, took 18 hrs but he didn't take a single aspirin - was beautiful experience, am so proud of him! #herohusbands"
Having pain relief makes no difference to your ability to pass your gallstones, or to the gallstones themselves, as, unlike babies, they're not actually ALIVE. Having pain relief in labour on the other hand CAN make a difference to your ability to get your baby out without needing to have them PULLED or CUT out of you, and CAN make a difference to your baby's condition at birth.
(and before anyone comes on and says epidurals can sometimes resolve a situation where a birth isn't progressing - yes this is true. But usually they hamper the normal physiology of birth, rather than not affecting it at all, or actually improving it. That's not to say they aren't worthwhile or a blessing for some women in some situations).
Sorry to point out the obvious, but that's what it is, the bleeding obvious. Which everyone chooses to ignore with their bandying about of analogies about rotten teeth and operations.