What you are saying, but many people (myself included) see this more like allowing them to buy condoms which prevent pregnancy rather than allowing them to have an abortion after the fact... this very same argument (pleasure without responsibility) could apply to any form of birth control.
One thing that bothers me about the people who are complaining about this is that in one breath they will fuss about the government overstepping it's bounds and being too big, but in the next breath they complain that they should create more legislation based on morals. Those two statements are completely contradictory. I think it is my responsibility to make sure my daughter doesn't buy (or need to buy) this pill... that's why I don't see it as "stripping away my parental rights."
Ron Paul convert from the Heart of Dixie