As somebody who was raised in an abusive household, I personally feel that people who don't want children should not have them.
But that entails personal responsability and paying attention to details, and most people are too stupid.
My wife and I didn't want children and we haven't had any. Our choice, and it's no one's business but our own. You want to have children, have at it. We don't, and we're haven't, and we're not going to, and we're fine with that.