I think this is really all about who has to pay for it. The laws being considered around the country are to allow insurance companies to just not be obligated to pay for birth control.
It's not to make hormonal birth control illegal.

Birth control would not be illegal, it would just not be covered by insurance. I don't see why it should, logically. What medical problem is it addressing. I think there is a reason beyond just preventing pregnancy that lead to a prescription of birth control pill, but I don't remember what. I'm sure someone is going to remind me.

I remember one snarky comment on this forum in another thread that if this is the case then Viagra shouldn't be covered. But men who are prescribed Viagra are prescribed this drug because of a medical problem and condition. This is not the case with birth control for a healthy woman.