I agree, I see existence as being dreadful, tedious, pointless and unnecessary. We are only enduring this futile process of waiting around to die because other people decided to so cruelly procreate, existence is a terrible burden to me and I see it as being a punishment having the ability to exist here.
And to answer the question if one doesn't find a way to leave they have no choice but to continue and after all we exist in a world where suicide is purposely made so difficult.