Wow! You might be on to something. But my worry is that diagnosing everyone as mentally ill could be raising a bigger danger.

We are human and certain emotions like anger and frustration tend to arise from time to time. That doesn't mean the person is mentally ill.

Attributing mental soundness to the life of a Saint is absurd because humans are not perfect. And that is why we are mortals. We are imperfect beings. That doesn't make us mentally ill.

Anyway, science will always try to make us feel incomplete no matter how well we live.