Hmmm. I think your MW will find that they DO do breech births at your hospital - what happens to the breech that's only diagnosed when they see that what's coming first is a bum and not a head!
I'd seriously be heading for the head of midwifery at this point. You might also want to talk to AIMS for advice.
If you want to do some digging into the research, most hospitals will use the Term Breech Trial (available in full for free if you register) to argue CS is "proven" safer than vaginal birth for breech babies. Unfortunately, it has been widely discredited (if you google "Term Breech Trial" with "review" or "critique" you'll get a LOT of reasons why, but here are some to start with from RADMID, RCM and the American Journal of O&G. This email chain also has some critique references and makes for very interesting reading for those interested in breech birth.
In April this year a study was published in J Gynecol Obstet Biol Reprod (Paris), which found breech delivery to be as safe as CS, and therefore did NOT recommend CS (you can find the abstract online, but I can't find the full paper for free anywhere.
To quote Mary Cronk, "Allow is not a word to use to a mentally competent adult." If you want to go for a vaginal breech birth there is nothing they can do to stop you. However, there is near universal agreement that the safety of vaginal breech birth lies in the skill of the midwife (or Dr for a delivery), and finding those skills within the NHS is, sadly, getting hard. You may need to look at IMs if you want to try a vaginal breech birth with confident, competent support.
I've got my fingers crossed for you.