What I'm not understanding about your way of thinking is that you are essentially saying that newborns and children are to be treated the same as adults. There's a reason why kids aren't allowed to drive, drink alcohol, or even watch certain media: They do not have the same standing, mentally or otherwise, as adults do.
The fetus relies on nutrients from the pregnant mother for growth and breastfeeding after born. It's not even remotely close to if anyone else made entitled claims to people's labor.