This has nothing to do with religious rights. This is about these women making asinine choices. If their religion bars them from being nurses, then they shouldn't be nurses. It's really that simple.
Can you imagine a muslim woman being hired to work as a stripper and then suing because she has to take her clothes off? Does anyone think she has a right to work as a fully clothed stripper?
The Amish are doing it right. Rather than force modern society to bend to their outdated religious notions, they remove themselves from modern society. So should those so called nurses.