The fact of the matter is you and I can not not state definitively if the soul is infused at conception or at first breath. Since we don’t know and since destroying a soul is such an horrendous crime (murder) then we have to assume that, until we know otherwise, that destroying a fetus is destroying a soul.
For an argument against abortion that uses non-religious logic check out:
catholiceducation.org/articles/abortion/ab0045.html
As i said, I believe. It’s a faith position like any other. I give it as much weight as it deserves.
However, God, if omniscient, would be guilty of ‘murder’ by ensouling eggs that God knows will never settle in the womb, because the souls would never even have a chance of gestation. Perhaps this is different to willful termination of a fetus, but it essentially the same if a soul is present…no birth. This applies to all miscarriages as well.
Worse, if omniscience is present, then God knows that a fetus is to be aborted, so inserting a soul ppredestines the fetus no no earthly existance and makes murderers of the people involved. That’‘s pretty harsh on the fetus’ soul, if nor the aborters. But with a slighht re-arrangement it wouldnt hurt either.
Of course, not inserting a soul would mean denying the potential aborters the opportunity to avoid committing murder, after all, what is virtue without temptation? So it may be that souls are created to give potential parents the opportunity to avoid temptation. Which is again harsh on the created souls, but maybe they get recycled.
Oh, and if you read the website you linked to you would realise the argument is nonsense. An apple starts out as a pollen grain fertilizing a female. it isn’t big, green/red, juicy, sweet and good to eat, or indeed visible. It simply has the potential to be all those things. And if you look at an apple tree, it loses lots of apples as other ripen.
So, we know what an apple is, and that swelling below where the flower used to be is not an apple. It doesnt look like one, is doesnt taste like one, it doesnt have the sugar content, it doesnt contain ripe seeds.
It’s not an apple, we know what an apple is. And that swelling is not an apple.
And as hist first argument collapse, the rest follows.