This seems to have nothing to do with the point in debate - which was that were abortion to be illegal, there would be less abortions.
I have answered this question before:
Illegality wont dissuade an addict from buying drugs, starved & broke person from stealing food.
Not every case of abortion, or even the majority, is comparable to a person at risk of starving to death. You are aware that abortions are also procured in large numbers as a matter of convenience?
Let me re-answer this one:
Nobody get abortion surgery for convenience. Nobody get abortion simply because it is legal.
If it is procured in “bulk” (is this what you mean by “procured in large number”?) it must be by a pimp or something like sex business… I won’t know the answer to that.
This is a kind of secular argument that denies the humanity of the child. As to the Summa - please make explicit how you see that section having relevance to the matter in debate.
Your initial point that the Catholic Church requires that the mother be saved first, then the child, is yet to find any support in the references you have provided.
The position of the Catholic Church is that there are two persons, both of whom deserve the best available medical care, and further that neither one may be murdered for any reason.
Summa, Second Part of The Second Part Q64
Article 7. Whether it is lawful to kill a man in self-defense?
I answer that, Nothing hinders one act from having two effects, only one of which is intended, while the other is beside the intention. Now moral acts take their species according to what is intended, and not according to what is beside the intention, since this is accidental… …
newadvent.org/summa/3064.htm#article7
Regarding why the mother? I have answered that too. Because the doctor’s duty is his patiient.
Summa, Second Part of the Second Part Q57
Article 2. Whether right is fittingly divided into natural right and positive right?
I answer that, As stated above (Article 1) the “right” or the “just” is a work that is adjusted to another person according to some kind of equality. Now a thing can be adjusted to a man in two ways: first by its very nature, as when a man gives so much that he may receive equal value in return, and this is called “natural right.” On another way a thing is adjusted or commensurated to another person, by agreement, or by common consent, when, to wit, a man deems himself satisfied, if he receive so much. This can be done in two ways: first by private agreement, as that which is confirmed by an agreement between private individuals; secondly, by public agreement, as when the whole community agrees that something should be deemed as though it were adjusted and commensurated to another person, or when this is decreed by the prince who is placed over the people, and acts in its stead, and this is called “positive right.”
newadvent.org/summa/3057.htm#article2