Do you know what a euphemism is? The author is being euphemistic.
And do you know what special pleading is? Because that's what you are doing.
Particularly the purchase of such matieral of an eight/nine year old anime girl
Wow, it wasn't an anime girl for one thing.
What does "passing" have to do with rationalizing that some biological shit is inherently "man" and "woman" to these subhumans yet other things have absolutely NOTHING to do with gender/sex?
This naïve model of gender perception treats gender as a property emitted from an individual, with all others as passive receivers who simply accept this expression at face value. Yet this is precisely backwards – expressions of gender are not objective and singular; they are subjective, interpretative, and multiple. The same trans person, on the same day, with exactly the same appearance, can still have their gender read entirely differently depending on who’s looking at them. Why does this happen?
At least in part, it’s because many of the variables involved here aren’t located within the one person being observed, but rather the multiple people observing them. Research on gender perception has provided extensive evidence that there is a wide array of factors which can influence how each person will see and interpret someone’s gender or the gendered features of their appearance.

(Nelson, Biernat, & Manis, 1990)
In one study, viewers looked at images of men and women of the same height, and consistently
perceived the men as taller than their actual height and the women as shorter (Nelson, Biernat, & Manis, 1990). This effect persisted regardless of whether the images depicted men and women who were standing or seated. A similar trend has been found among parents of infants, who consistently estimate newborns of the same size as being
larger if a boy, and smaller if a girl (Ruben, Provenzano, & Luria, 1974). Whether a person sees someone as male or female has a direct influence on the perception of their height and size. Considering a trans woman to be a “man” could mean seeing her as taller or larger than she really is.
(DeBruine et al., 2010)

(DeBruine et al., 2010)
There’s also evidence that a person’s own imagination can skew whether they view a face as more masculine or feminine. In one experiment, after subjects had either been asked to
imagine a feminine face or a masculine face, each group was then shown the same androgynous-appearing face. Those who had imagined a feminine face also saw the image as more feminine, while those who imagined a masculine face saw it as less feminine (D’Ascenzo, Tommasi, & Laeng, 2014; DeBruine, Welling, Jones, & Little, 2010). A person who imagines that trans women appear stereotypically “manly” may perceive a trans woman as more masculine than she really is upon learning that she’s
really is upon learning that she’s trans.
Skewed perceptions of our gendered appearance can be based on unseen features as well. In their 1978 book
Gender: An Ethnomethodological Approach, Kessler and McKenna reported on the results of an experiment where participants were asked to determine the gender of a series of drawn figures with various combinations of gendered features. They found that even when the genitals of a figure were concealed, once subjects decided which genitals they
believed it to have, this belief then
influenced their interpretation of its other attributes (Kessler & McKenna, 197

. Those who decided a figure had a penis would more often view that figure’s long hair as still being within the range of an acceptable “male hair length”. They were more likely to disregard such a figure’s wide hips or even judge them as being narrow, and tended to consider its face to be masculine – even though
the same androgynous face was used for every figure. For someone who’s preoccupied with thinking about the genitals they imagine a trans person to have, this could influence how they evaluate that person’s masculinity or femininity.
Another study found that subjects were more likely to rate a walking human figure of ambiguous sex as being male when they were exposed to the
scent of male sweat (Hacker, Brooks, & van der Zwan, 2013). This effect was observed even though they were not consciously aware that the scent was present.
Straight men who score highly on a rating of
insecurity about their masculinity have also been shown to direct greater attention toward more accurately recognizing faces with a gender-atypical appearance (Lick, Johnson, & Riskind, 2015). Researchers have theorized that this occurs because these men perceive gender-atypical people as a threat to their own identity. A person who doesn’t feel secure in their masculinity might be more likely to look for trans people and notice that someone is trans.
Gender attribution is also known to be affected by a persistent bias toward categorizing individuals as male. Kessler and McKenna found that masculine-coded and feminine-coded cues are not weighed equally when evaluating someone’s gender; instead, multiple feminine cues were needed to counteract even a single masculine cue and ensure that a figure would be perceived as female (Kessler & McKenna, 197

. Over the years, this “male bias” has been repeatedly observed in many studies. The size of a person’s hands is often used as an indicator of their gender, and when a hand is of an ambiguous size, it will be
interpreted as male more frequently than female (Gaetano, van der Zwan, Blair, & Brooks, 2014). The same skew towards categorization of individuals as male has been observed in the
interpretation of waist-to-hip ratio as well as overall body shape (Johnson, Iida, & Tassinary, 2012).
(Johnson et al., 2012)
Studies of gender attribution have described people as generally “conservative in their judgements of targets as female but liberal in their judgements of targets as male” (Gaetano et al., 2014). This may partially explain the widespread perception that trans men are able to achieve a
clearly male appearance more easily than trans women can achieve a clearly female appearance. It may not be the case that they are actually expressing more clearly visible gender cues than trans women – instead, this apparent ease could be an artifact of the general tendency to require very few masculine cues before viewing a person as male.
Increasingly, even many
cis women are being harassed in women’s restrooms by self-styled vigilantes who felt that they were insufficiently feminine and
judged them to be men. Male bias has a more pronounced effect as gender cues become more ambiguous: getting an uncertain or unclear look at a person’s face is associated with a greater likelihood of
perceiving them as masculine (Watson, Otsuka, & Clifford, 2016). This may have an outsized impact on trans people and how their appearances are evaluated, as their physical sex characteristics are sometimes seen as at least temporarily occupying an intermediate or mixed state.
They're just making it up as they go along for sake of convenience. As in, it's easy to acquire estrogen/testosterone, therefore, it's easy to assign these things to one gender vs the other, whereas finding a surgeon who will turn your MAN cock into a beautiful WOMAN vagina actually takes thousands and thousands of dollars, therefore there's no such thing as a MAN cock, the cock is completely asexual/agenderal!
Both "sexes" have both testosterone and estrogen in varying amounts to begin with so no, they are not inherently gendered. I doubt you would find any trans persons who believes in your strawman literally.
Again, my phrasing is deliberate.
That's also called "making a strawman".