i don't know what it takes to get out of depression, but "it isn't going to fix itself" doesn't contradict that the depressed person can't get out of it on their own. it's like telling someone stuck in a hole to stop whining because they are not going to get out of the hole as long as they do nothing. that's true, but they are also not in a position to see a way out, or may simply not be able to get out without help.

as i said, i don't know what it takes, but i do think that compassion, patience, and recognition of efforts and absence of any hint of blame by others are part of it.