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The mindset she operates on is the common error that many seem to hold: that ɧoɱosɛҳųαƖity is some sort of "cross" given by God and that they can't help it, i.e. they were "born that way". Absolutely NO ONE is born to be a ɧoɱosɛҳųαƖ. It is a learned behavior given through trauma and impounded by sin.

Of course there's the difference between "behavior" and the "inclination" (usually called "same sex attraction").  As you mentioned, there could have been some trauma that led to the inclination, and there can be different degrees of culpability for the inclination itself ... that only God is probably in a position to determine.  But consenting to it or willing it or acting on it would be grave sin regardless ... even if one's subjective culpability for the inclination itself might be diminished in the internal forum.

This distinction is precisely the one that Bergoglio tried to apply (incorrectly) in Amoris Laetitia.  For Bergolgio, if somehow someone can determine in the internal forum (consulting with their spiritual director) that they were not gravely culpable for the circuмstances that led to their current condition of cohabitation, then that would permit them to continue in their current state of cohabitation without subjective guilt in the internal forum.  That's the height of absurdity.  I'll get back to this later, but this is the key to exposing the erroneous "logic" of AL.

But I would have you know, that the head of every man is Christ; and the head of the woman is the man; and the head of Christ is God. Every man praying or prophesying with his head covered, disgraceth his head. But every woman praying or prophesying with her head not covered, disgraceth her head: for it is all one as if she were shaven.

For if a woman be not covered, let her be shorn. But if it be a shame to a woman to be shorn or made bald, let her cover her head. The man indeed ought not to cover his head, because he is the image and glory of God; but the woman is the glory of the man. For the man is not of the woman, but the woman of the man. For the man was not created for the woman, but the woman for the man. Therefore ought the woman to have a power over her head, because of the angels.

- 1 Corinthians 11:1-10

Wow.
I'm not even joking, I think I've never read this in my life. Or is my memory that bad?

Probably because nobody ever dares bring up this passage, ever.