If we give religious exemptions to secular laws, then it's going to be our duty (or rather, the duty of the courts acting on our behalf) to sort all that out.
Personally, I don't want secular courts ruling on what is and isn't "proper" Christianity, but the way to avoid doing that is to just make everyone follow the same laws.
But, we could argue these laws are unconstitutional in the first place. I guess that's where we diverge in that I just think such mandates have no place in the secular space either. Just because it applies to everyone in general doesn't mean the protected rights need be thrown to the side. I disagree with nearly any concept Christianity believes in, but I know if their rights are signed away so are mine.