[Mad Dawg]

The main question of this thread leaves me utterly uninterested. But this, on the other hand, is more intriguing:
I think describing a woman utterly free of sin as “semi-divine” is reasonable.

I'll argue to the contrary. Here's an attempt at a reductio:

If being sinless means that Mary is semi-divine, then EITHER Adam and Eve were semi-divine (which may not be so very far off base, actually) OR it is the nature of man to sin.

But if it is the nature of man to sin, then Creation was not "very good," for sin is evil.

As to the semi-divinity of Adam and Eve, if that is to be accepted (and note how I get a lot less all logic-y and everything) I would suggest that it would be a destiny thing, rather than an as they were right then thing.

Here's an attempt at a "constructive." The principle division in the Biblical view of "everything that is" is that between Creator and creature. In particular: Mary is nowhere thought of as a creator (that I know of, anyway.) In general, it is unclear to me what 'semi-divine' would mean. Outside of the Incarnation it is hard to imagine anything being both Creator and creature.

In any event the official teaching is that Mary was preserved from sin NOT on her own toot but by a unique act of Christ at her conception and, I assume but could be wrong, by a continued sustenance in grace.

It is okay, I think, to say that in a way all the saints will be semi-divine at the general resurrection and thereafter. But I would say that that was more a matter of an eternally increasing intimacy with God Himself and the eternally increasing gift of grace to sustain that intimacy.

In any event, I think the most interesting problem posed by your assertion is the one about whether and how man is 'naturally' sinful.

[MHGinTN]

‘In that Adam sinned and sin passed to all men’ ... if there were humankind who had no spirit component (perhaps they evolved to that point of homo erectus but without a spirit in their soul/behavior mechanism) and God created adam to have a spirit component but it was sinless until he willfully disobeyed God, then all those descended from Adam would have inherited the spirit component as passed to Adam’s off spring after God breathed into Adam and he became a living soul ... Or something like that?