John P, your point about Catholic employers and employee health insurance is very interesting. It is, I think, a particularly American problem as in the UK the NHS obviates the need for such insurance.
You say that Catholic employers are refusing to comply with employment law, have they been challenged in the courts regarding this? As for passing a religious test (unless the job specifically requires a significant grasp of religion) that sounds rather like Sharia law.
I did a course on religion with the OU a couple of years ago. The tutor was very good, and an atheist. Makes you think.