This was interesting; I'd long sensed a difference between the conservative/fundamentalist Christianity I grew up in and the Christianity of some of my teachers who were more influenced by the likes of Lewis and Tolkein. Fundamentalists seem to take "be in the world, but not of the world" in the most literal of senses (i.e. don't live in a commune in the desert, but only consume Christian books/music/movies/culture).
I'm curious--was abortion the only issue that drove the split of Christianity into it's 'separate but equal' public? I'm far too young to have experienced this firsthand, and as I understand it homosexuality only really became a public issue in the 80s and 90s.