Every drug on the market kills people. Even Aspirin kills a few people every year.
The sale of every drug involves a cost-benefit analysis: How many people are harmed by the drug versus how many are helped.
The birth control pill is a recretional drug- used to have recreational sex.
Recreational sex is the only benefit of a drug that kills innocent, unwitting people that didn't take the durg themselves.
If my taking an aspirin could potentially kill you, your tune might change.