As far as I know, no one asks to be born. You didn't ask to be here, I didn't ask to be here. Someone, or a pair of someones, maybe even a group of someones, and let us not forget the Ultimate Someone, decided we should exist and what do you know... here we all are, existing.
Whether they mean to or not, biological parents create a human being, give it something it didn't ask for (life), and effectively say, "Here, now do something with it." Is that cruel? Generous? Selfish? Benevolent?