Why did Jesus suffer for sinners and not victims

[John 6IX Breezy]

Also, your point misses the kind of developments to the number. So this doesn't help your case in the slightest. 

To the number? You mean ascribing value according to how many developments they've accumulated? If so what is your cutoff number? Presumably, most people would save an infant's life over an elderly person (making "number of developments" inversely correlated with what people value.)

And your landmark is totally arbitrary too. Why fertilization? Why not sex? Why not the development of the sperm?

There's nothing arbitrary about fertilization. That is when embryology marks the beginning of a new organism; it's the process during which the full novel genome of an organism is established, and its developmental trajectory initiated. (Sperm is just one of the gametes involved in fertilization, and sex initiates the process by which gametes are brought into contact, etc.)

Please note ultimately I consider the question of development an irrelevant topic when it comes to abortion. I was simply putting forth a possible defense of such a view. There is a far better reason for pro-choice.

Sure, like I said before, I tend to dislike pro-choice arguments because they are avoidant in nature—as you just demonstrated. Abortion is defined as the termination of a pregnancy; it is the removal and expulsion of an embryo or fetus from the womb before it can survive. To say that this is all irrelevant to abortion is rather contradictory to put it respectfully.