Language says a lot about the society that speaks it. It doesn't NECESSARILY say much about the individual who speaks the way everyone around him or her speaks. (Although as an individual I prefer to make my own choices about what linguistic choices I embrace and which ones I reject.) It's more a sort of cultural psychology indicator.
The fact that the only word most North American adults use for a woman's entire vulval region is "vagina" SCREAMS to me "we can't deal with women's sexuality! all we can handle is the word for where the penis goes!" And given North American society's overall messed up culture about sex and female sexuality... I'd say this is dead on.
Anyway someone on my new favorite website, Elephant Journal, agrees with me, and wrote a very nice little article about it.
Happy end of the world.