Yes, very similar to how in the decades after abortion was legalized nationally in the US, it gradually northern to our current state where it is legal to kill your own children any time before they turn 18.
Oh wait, no, that didn't happen, because in both your and my case it turns out humans are able to distinguish between life that is and life that might be. The "step" you mentioned is only a small one in a philosophical sense, enormous otherwise to the point of not being a concern.
This is a great example because it strengthens the original one I was making; that despite pearl-clutching about what something "could allow", the actual bad thing that they're concerned about never happens. It's just a distraction tactic.
Plenty of states, like Alaska and Oregon, already allow abortion right up to the moment of birth. They don't happen, ever, zero times, except in cases where somebody is going to die otherwise.
The handwringing over "omg they're killing children" actually just kills both children and mothers by making lifesaving procedures illegal. People don't carry unwanted babies to term unless forced to do so.
Thus making it illegal to abort a full-term baby does nothing but score political points, at the expense of the deaths of some mothers who desperately wanted a child and then had some complications.
Oh wait, no, that didn't happen, because in both your and my case it turns out humans are able to distinguish between life that is and life that might be. The "step" you mentioned is only a small one in a philosophical sense, enormous otherwise to the point of not being a concern.