The New York Times reported this week that the Donald Trump Administration is considering, for federal purposes, a definition that a person is male or female “based on immutable biological traits identified by or before birth,” supplemented if necessary by genetic testing. That would overturn a policy under President Obama to recognize transgender identities.

The Times team repeatedly used the new “Mx.” identifier preferred by Jill Soloway in a lengthy October 14 feature about pro-transgender media. Formerly a married heterosexual raising two sons, Soloway now identifies as “non-binary” after “peeling off” physical femininity (breasts, clothing, hair, makeup) so that “I’m like nothing. Just human.” Soloway produces films and plans to publish a book about “gender-creative” parents who keep their child’s gender “a secret.”

Weeks before that, the Times “Ethicist” column fielded a questioner’s “moral aversion” against attending friends’ “gender reveal party” to celebrate their firstborn because that would affirm “gender binarism.” Prof. Kwame Appiah’s response deemed attendance OK assuming the parents would be equally happy if an infant girl later becomes “a boy, or neither a boy nor a girl.”

There are challenges here not only for elite media policies but for members of “mainline” Protestant churches, clergy and seminiarians. Consider Yale Divinity School’s Reflections magazine edited by Ray Waddle, former religion writer with Nashville’s Tennessean. The current issue — texts not yet posted online — blends support for the budding transgender cause with opposition to patriarchy and #MeToo abuse.

The trans movement says gender identity is “assigned” by the culture, and thus changeable, avoiding considerations of birth genitalia (Yale doesn’t mention chromosomes).

This approach is gaining. Ligonier Ministries’ biennial survey on Americans’ beliefs finds 46 percent of Millennials under age 35 agree “somewhat” or “strongly” that one’s “gender identity is a matter of choice.”

Journalists will ponder words in Yale’s “gender identity & affirmation” guide (.pdf here and note that the “worlkplace” typo in URL is needed for access). Each person’s “PGP” (preferred gender pronoun) is to be followed, and new labels observed — “transgender” not “transsexual,” “gender-affirming surgery” not “sex change,” “cross-dresser” not “transvestite,” or “cisgender” instead of “binary” male or female.