That is however not what OP is saying.

They rather feel that their depressive disposition may just well be their personality and not neceserily a *flaw* and they do not seek to be "healthy" in other person's definition.

(I hope I got the main feeling right).

So if I my baseline is somewhat lower, am I a pessimist, a grumpy cat.... or "ill"? Is my cynicism symptom of "illness" or is it me? Maybe some people are naturally depressive and they can learn to deal with it well and thrive. They still are somewhat less sunshiny then the ideal, but they don't use it agains themselves and can sail through or even use if for their good... (I hyperfocus. Some would call it symptom of my illness cause it kinda affects my social life... but my friend's lack of hyperfocus and social life gotten in a way of getting degree on first attempt. Genuises tent to obsesses and isolate.... but is it bad, or their way?). What about accepting ourselves for what we are and taming it, instead of completelly *killing* the quirks?

Tom Wootton compared bipolar to racing car. In order not to get hurt, you can either park in in your garage and never ever drive it... or learn how to drive it. I prefer to learn to drive my disorders, for good and bad.