the hallmark of depression is an inability for passive enjoyment
i genuinely believe that no further elucidation on the condition is necessary, this aphorism should suffice
That's a big part of it, but what about the deeper resonances of depression? There are levels of pain that go beyond simple lack of pleasure, that become oppressive. That sort of..... 'hurts just to wake up in the morning' feeling. Not to mention the abject hopelessness. The self-loathing. I think you're over simplifying.
There's multiple sorts of depression, and the sort he's discussing sounds like the empty, hollow, lethargic variant, which is what I typically associate with Depression as well.
By contrast, I'd say self-loathing and other dramatic feelings are closer to extreme sadness, the opposite of Depression through the volume being cranked in the opposite direction with more than enough room to self-indulge.
Ones sadness can be their path to fulfilment and validation, while one's depression is just emptiness.
