I don’t want anyone making medical decisions for me. I want the freedom to pay for anything I want myself.
I can pay to have an oil change on my car. My car insurance company doesn’t cover it.
What if your employer were Scientologists? They would not cover anti-depressants or anti-anxiety medicines. Or Muslim and they refuse to cover any medicine that could contain pork, whether real or imagined?
Anyway, this is not a religious issue. They object for moral reasons, not religious reasons.