I was talking to my little sister about why I was choosing to have a homebirth (or at the very least, why I would choose to decline most "normal" hospital procedures/protocols if I did end up in a hospital for some reason) and a few things I said seemed to resonate with her:
1. Tell them WHY laboring/pushing on your back holding your breath is such a bad idea. pelvic opening = small, muscles = tense. You can't argue with basic human anatomy. Explain that THIS is what makes babies "too big" to birth - poor positioning, basically. This is so simple, but if OBs don't seem to know it, you can bet most average moms don't know it.
2. Definitely explain the "cascade of interventions". People don't realize the package deal they are getting, LOL.
3. Explain the mental and phychological aspects of labor. The way I explained it to my sister is this: ask them if they are familiar with the "placebo effect". They will be, and it's basically this: studies have shown that in the majority of cases, people who are actually given a medication to trat a problem and people who are TOLD they ave been given that medication heal equally well. It is essentially the power of the human mind over the human body, that feeling of CONFIDENCE and surety that things will be ok. Labor is very similar - if you don't know what's going on and are surrounded by "professionals" who are sure disaster is going to strike any moment, etc, well, guess what's probably gonna happen. Since most of these women will probably feel more "comfortable" in a hospital (at least for the near future, maybe some of them will come around eventually - that's what happened to me) I would focus on empowering them within their chosen setting.
4. I read something in Henci Goer's book that hit home with me too: births in the medical model are pressured to conform to the "average" birth, which basically doesn't exist. Rather than embracing the range of NORMAL, OBs etc focus on the AVERAGE, which is usually very different. Like for due dates, length of labor, that kind of thing.
Well, that's the major points for now. Hope that helps, and good luck! This is an important undertaking, but it won't be easy.