Unironically if everyone with depression just died off then the less reasons still living people would have to be depressed overall. There would be more resources, more jobs, more people with time to spend with their fellow humans instead of a person who prefers being locked up in their room anyway. Depressed people who choose to live on are just too cowardly/selfish to see the bigger picture that they are in fact just dragging everyone else down and wasting peoples time, time that could been spent on people who deserve it. If you are alive and hating the world then why do you choose to keep going? If you're going to hate it anyway then don't ruin it for others.