okay, Einstein, i regret taking the bait, but I'll bite.
Tell me, oh wise one what the physiological difference is between a baby at 266 days one hour before its born and 266 days and one hour after it's born.
I'll give you a hint - the anwer is literally nothing. It is physiolgoically identical the moment before it comes out as it is the moment after.
So if they're the same, killing it the moment before birth is, scientifically speaking, identically to killing it the moment after.
So there must be a point at which its okay to to kill it. How about 2 weeks before it's born? what are the physiological differences. Not much, really. Maybe ever-so-slightly underdeveloped lungs, but that's about it.
so.. are we going with viability? the youngest recorded premature baby that was born was born at 21 weeks.
But lets explore that. what's the physiological difference between a fetus at 147 days (21 weeks) and 146 days? 20 weeks and 6 days.. still younger than the earliest viable birth.
The answer is nothing.
So, okay lets go with the first trimester. that's the point at which people seem to go from "it's perfectly abortable fetus" to feeling squeamish about killing it.
Again, what's the difference between a baby at 16 weeks minus one day and 1 weeks plus 1 day? nothing
All of these differences are arbitrary.
lets go back to the first example. one minute before vs one minute after birth. I don't know a single mom on earth that would not face a pack of wolves in order to protect the life of her baby. But one minute before, it's.. what? a fetus?
all of the differences between okay/not okay are arbitrary. the ONLY moment where there is a definable, instantaneous biological difference is conception.
if you logic it out, there is literally no other way to look at it.