My wife asked for my opinion on courts that don't follow Sharia law. I don't believe in man-made courts, but we live in a country without Sharia. She called me a Kafir and accused me of Shirk before leaving. What should I do in this situation?
Bismihi ta'āla
Whatever your view may be about man-made laws and courts, it has nothing to do with shirk and kufr. It seems the issue your wife has with you is not about courts. What you should is try to mend the relationship, if you can, and avoid having these kind of arguments.
And Allah knows best