For my own reasons I will never have a kid. I understand the mindset you're describing. That being said, I don't mind others wanting to have children as long as they truly want them. I mean, it's very simply natural selection and primitive human nature to reproduce. So, for a couple to truly want a child, it's something special in my eyes.
I can't stand people having children for any other reason; whether it be "accident", feel morally obligated (which can be good but it can also be bad), or have a child to save a marriage. That's where I have a problem with it.
But the couples who are loving and have themselves together before they have a kid and then dedicate their livelyhood to their children, I believe they deserve it. I also believe it's a really special thing. Good for them.