Yes. Having children is a moral obligation to God/society/family/etc.
No, they are free not to have children. They don't have to answer to anybody
Not if they have reproductive problems.
Yes, even if they have reproductive problems. They can adopt, you know.
They should get a medal for lowering world population.
I don't know.
On the original question of course they aren't inferior.
Quo usque tandem abutere, Trump, patientia nostra?
I don't know why I would torture my ovary just so I could conceive a child who has a high risk of a million different birth defects. If I ever suffer from a total personality change after some kind of head injury and decide I'd like to parent, I would adopt one of the millions of unwanted children who already exist. Or just, ya know, get a cat.
But I find that to be a profoundly unlikely scenario.
Not wanting to parent isn't a "belief." It is something about my personality, like the fact that I am introverted, or the fact that I am artistic. It is something I knew about myself very early in my life -- even before I understood that reproducing is actually optional. And you know absolutely nothing about me.
Contraception is not the last thing on the list. It is tied for first place with breaking down the rape culture.
People who cannot protect their bodies cannot improve their circumstances.
... the 20th century has been characterized by three developments of great political importance: The growth of democracy, the growth of corporate power, and the growth of corporate propaganda as a means of protecting corporate power against democracy.
Australian social scientist, quoted by Noam Chomsky in World Orders Old and New