Speaking as somebody with made-up depression, why has nobody made fun of the classic !luck mistyped OP, gets me every time

I just don't get it. Feels like such 1st world problem. When you can't find food to eat, can you really be depressed? Or are you too distracted by surviving that depression doesn't exist.
I don't get why this matters - there are lots of problems that aren't as important as starving to death.

And if you can will yourself to function, how can you be depressed
Depression or not, this is never a yes-no question, right? Like most people can will themselves to get up in the morning and go to work because they want the benefits of this, but an awful lot of people can't will themselves to get regular exercise, even though they want the benefits.
My personal experience is that the stuff you just can't seem to make yourself do becomes smaller and smaller things to the point it's ridiculous, but there's always stuff you can do and stuff you can't, and working your way up from accomplishing tiny tiny things to tiny things to silly small things to small things etc. etc. is one of the most helpful things I can think of. I definitely do not feel it's any way a case of a tick in the depression box meaning "this person can't make themselves do anything at all".

maybe that is how we are designed to exist. It's foolish to be happy when we are designed to be depressed.
"designed" and "foolish" aside, this is a thought that plagues me pretty often, that the happiness dealio is just a carrot held in front of us by our brains.

(random tangent, I feel the most creative when I'm upset/angry/in-a-negative-emotional-place I guess because I use that creativity as a coping mechanism, so maybe it's not so weird to see how many people with depression achieved cool shit, but I'm talking out my ass so...)