Have you ever pondered that nobody really knows how much anybody else is hurting? We could be standing next to somebody who is completely broken and we wouldn't even notice it. But what if you are the person who is broken?
Its strange having moments in life when you realize that how your life could be, and then having to return to how it really is.
A moment usually arrives when your life feels like its caving in on you. That is the reason why people really do feel like they don’t want to exist. They just want to curl up in a ball and go to that place between life and death. Saying "I don’t want to exist" doesn’t mean that you want to die. It means "I wish, for the time being, I could go somewhere and not feel all this that is happening to me." I don’t think there is anything wrong if a person thinks that way.
In case some people don’t know how it feels to feel this way, then you have no place to judge anyone who does.