There are those people who are suffering from the debilitating mental illness of depression. They are trying their best and telling them to cheer up and get on with life is not going to work. They are doing the best they can.
Then there are people who are selfish, sullen assholes who are too lazy and self-absorbed to get outside themselves and give others in the world some thought and help. These people also tend to say stuff like, “I can’t help it! I’m depressed! It’s a mental illness!”
Both these kinds of people exist. They are also very difficult to differentiate.
So, how are you supposed to tell them apart, so that you can react to their behavior appropriately?
How the fuck should I know? What am I, your fuckin life coach? Fuck off and leave me alone, I’m depressed.