untermensche
Contributor
We don't know anything about how a mind is created or what it is, except our subjective experience of one mind.
We do know the obvious.
A brain is not a mind.
What we know is that the mind is a byproduct of the brain and that everything about the mind and subjective experience can be altered by altering the physical brain.
The mind is created by brain activity so a change to the activity can change the mind.
And as a person ages the brain itself changes and so does the activity.
But the activity of the brain for most is very stable and only changes very slowly over time.
Psychological gender is an aspect of the "mind", and like all aspects of the mind, it is a byproduct of the physical brain and thus a result of interactions between genetic code and environmental factors, which includes fetal hormone exposure that shape development of the many brain features that are both shared and highly vary on average between the biological sexes.
A lot of gender identification is cultural and has nothing to do with the brain
Long hair in some cultures is feminine while in other's it is masculine.
A dress in some cultures is feminine and in others masculine.
However, contrary to the OP, this science does not undermine the biological foundation of transgenders nor does it support a binary conception of gender. The differences between the sexes are on average with huge variations along a non-binary continuum around each average tendency, such that a large % of males overlap with a large % of females on these measures of gene expression and brain features. Plus, there is science showing that fetal development of the genitals and of the brain regions involved in psychological gender occur at different time points and thus have different In-Utero factors impacting them. Which makes it not only plausible but likely, that some % of fetuses will develop brains (and thus psychology or "minds") that are more like the brains and "minds" of typical members of the opposite sex in terms of chromosomes and genitals (not even considering the % of babies with genitals that cannot be categorized into a binary system).
Yes.
The heterosexual never chose the idea of finding a mate of the opposite sex.
Nobody chooses their sexual preferences.
Although I think being sexually attracted to children is more about wanting to control another for your selfish use, about the "ego", about greed, than merely about a sexual preference.