I am a CPM and a state licensed midwife. I also had a UC birth with my son and am open to another one this time around (I'll probably decide in the moment what I will do and if I will call anyone).
I support UC, and am willing to do prenatal care for those that want it but don't want me at their birth, or those who want someone on call for their birth, but aren't sure if they will call me. (I have a client like this right now).
It isn't a very popular thing among midwives, though. The midwife I trained with feels the same as I do, though, so that's nice.
I think its an especially important issue to me as a birthing woman, because during my son's labor, it was very long and challenging, and I ended up needing to call a midwife-friend to ask a few questions, etc, and she eventually came over (but lived far away so didn't arrive until he was crowning). If I didn't have the option of calling her when I was entering my 2nd day of active labor and was exhausted and wondering why he wasn't coming out (although I was never once worried about his well-being), I would have probably gone to the hospital, and I'm almost 100% sure I would have been sectioned. And in fact, i've heard of many UC transports that maybe didn't need to transport to the hospital, but they had no other resource for help when things went slightly out of the range of 'normal'.
I know very well the risks of UC, and in fact, I know personally one woman whose baby died during a UC. I don't sugar-coat the risks to clients who consider it, but I also respect that they know what is best for them. As a midwife who has seen some scary complications at births, I know there are a handful of situations that could take-away my own baby's life if I don't have a couple extra sets of trained hands...but that could also be said about homebirth vs hospital birth (as we don't have *all* that equipment and technologgy available at home that may save a life on a rare occasion). I'm not delusional, and I accept those risks (however small) as part of birth and its how I feel I give birth best.