IIN that I think this deeply into mental health disorders a lot?

I understand. It depends though on the severity. It's a "disorder" because its not a "disease" - many things are not well understood and don't have a physical source, like a tumor or mutation. Now, my bf is bipolar and has a lithium imbalance, but his bipolar cousin does not. My bf manages without medication - occasional mood swings, but he know how to handle them. His cousin can't function without meds because she's so depressive.

In my opinion there are occasions when a person truly can't handle their situation due to a mental disorder. But many (or most) are able to handle themselves, or at least recognize and control their symptoms, and so should not be excused for their behavior. A single outburst is one thing. But a repeated, known negative behaviour (pedophilia) in inexcusable because either the individual chose to continue it, or they chose not to seek help.

However, it also seems that mental health is the go-to for impossible defense cases. Oh, you murdered your wife, and there are witnesses? Claim mental health. I'm sure there's the occasional true story, but it seems that the excuse is over used.