*consistent declaration of gender identity, their actions, attitudes, dress and mannerisms."
I really wish the school board, required under title ix to prevent any form of discrimination on the basis of sex, would expand on what, in their rulebook, constitutes the actions, attitudes and mannerisms consistent with "girl." If they had to actually define how they're saying girls are supposed to act, think and carry themselves, maybe there would be a better chance of this ideology being recognised for the regressive misogyny that it is.
I would like to see much more use of the question "what does that actually mean?" when phrases like "living as a woman" and "girl's brain" get trotted out. Those ideas can't be expanded on without relying on sexist stereotypes, and I think the best way to draw attention to the inherent sexism of this trend is to continually insist that that kind of terminology is clearly defined.
If the school board said that students will be considered female if they are more interested in fashion than politics, take a submissive social role, and pay careful attention to their personal appearance, they'd find it harder to pretend this is progressive. But what else can "attitudes and mannerisms" mean?