From the "we cease to be humans" phrase i would assume that you have some more extra ideas on what is a "proper" human and what isn't.
Suddenly babies can be born without parents to advocate for and protect them, opening them up to exploitation. Persons can be born en mass, in factories, genetically engineered, as in Brave New World. Men and women no longer have families as anchoring purposes with some sort of corporate overlord as 'parent'. That's not a human life. I think this should be obvious to people and obvious why premature care is not the same thing.
That already can and does happen. Orphans are still human, even if they never had parents or family to care for them.
Humanity is something you are, not how you were made, or the circumstances of your birth.
an orphan is absolutely not the same thing as a 'baby on demand'. God you people are tedious to talk to.