It regulates a woman's hormones and consequently kills unborn children- therefore, it is a human pesticide.
I sometimes take morphine for my female pain. Yes, there are other treatments. You just didn't have incentive to look harder for the other treatments. I was told endometriosis had no other treatment. I just refused to accept that and hunted down a Catholic ob-gyn (I'm not Catholic, but that's where I had to go).
She doesn't have endo. We've gone to multiple doctors, and all have agreed. Her body simply does not regulate itself, and needs to be forced into regulating.
I'm glad you found an alternative, but for some people there is none, and that's why it should remain legal.