Probably nobody needs this spelled out now that Aspidistra’s flounced, but just to address a fundamental point:
CONVENTIONAL GENDERED NOUNS AND PRONOUNS IN LANGUAGE USE DO NOT CONSTITUTE TRUTH CLAIMS ABOUT BIOLOGICAL SEX.
I mean, a moment’s thought ought to be enough to convince anybody how silly it is to assume that grammatical gender has to correspond to biological sex in human language use.
When Hindi or Hungarian speakers use the same pronouns for male and female persons, are they “pretending” that males and females have identical genitalia? When Victorian authors referred to infants (or even toddlers or ten-year-olds) as “it”, were they “pretending” that the child in question was sexually neuter with no genitalia at all?
Of course not. They are simply referencing some social category (e.g., “person”, “child”) that is conventionally decoupled from claims about biological sex.
English and other gendered-pronoun languages have always recognized certain specific conventions where gendered nouns or pronouns are considered to be decoupled from implications of biological sex.
For example, the traditional “indefinite singular ‘he’” pronoun in English that theoretically applies to both male and female referents. Or, say, French feminine nouns used as titles for male persons but keeping their grammatical feminine gender:
“Où est le roi?” “Sa Majesté est en retard, elle arrivera bientôt.” (“Where is the king (m.)?” “His Majesty (f.) is late, she (i.e., the Majesty) will come soon.”)
The emerging English-language convention of decoupling gendered pronoun use in general from biological sex at birth is fundamentally the same sort of thing. When ignorant transphobes try to claim that the use of such conventions implies deliberate “pretending” or “lying”, they are full of shit.
Yup. [ETA: I’m assuming you meant that phrasing in the sense “compete in women’s events”, rather than trying to draw an invidious distinction between the categories “transwomen” and “women”.] If transphobes actually gave a rat’s ass about really providing fair and fulfilling competition opportunities in women’s sports, they’d be respectfully and thoughtfully discussing the sort of issues I mentioned, about exactly what levels and types of innate physical advantages should be considered “unfair”, and how to structure a system of competition categories that would successfully accommodate those different advantages.
And in the process, they’d be referring to transgender female athletes by their preferred names and pronouns, because there’s absolutely nothing in the issue of sports competition that requires anybody to do otherwise.
But do they? Of course they don’t. Pretending to care about supporting (cisgender) girls and women is nothing but an excuse for them to insult transgender people. Otherwise they would be perfectly well able to discuss the relevant issues without insulting transgender people, just as all us non-transphobes manage to do.