because sometimes people do actually feel that way. sometimes your life feels like its caving in on you. sometimes people really do feel like they dont want to exist, like they want to curl up in a ball and go into that place between life and death. saying "i dont want to exist" isnt saying "i want to go die" its saying "i wish that, for the time being, i could go somewhere and not have to feel" i dont think there's anything wrong with that. and if you dont know how it feels to feel this way, then you have no place to judge anyone who does.