a person has rights, a non person entity does not have the same rights (if it has any at all)
a non-viable fetus is a non-person entity. therefore it does not have the same rights as a person
just as a tangent. a person doesn't have the right of survival. a person has the ability to survive, but no inherit right to survival. generally nobody has the right to end a person's survival, with a few exceptions. of course (self defense, war, death penalty) a non-viable fetus doesn't have the ability to survive
Do you see how you're still doing it? Arguing in a circle I mean?
Why does viability confer personhood or humanity? You haven't really answered that yet. You're just repeating yourself, without explaining yourself.
Imagine this. Imagine if I said:
"Atheists are all evil." And you said, "Why are they evil?" And I replied with "Because they're atheists." And you then said, "But why does that make them evil?" And I said, "Atheists are evil because they're atheists."
Do you see what my issue is now? I'd have to explain why atheism confers evilness on someone to answer your question.
Yes - I agree, only humans have human rights. But - why aren't nonviable fetuses humans?