Or more likely, much like white men, these straight white women finally realized being a rich, educated, pretty white woman no longer means the world revolves around them anymore, and it makes them sick. They can't give their best friend a halfhearted peck on the cheek and claim they totally made out so she can claim to be bi anymore, people realized claiming "queer" is word salad, so all they can do to be special without actually doing anything is to trans their kid so they become the special mother of a trans child. And if it ruins their life and they kill themselves? NOW they're the tragic little trooper mother of a trans suicide who's dedicating their life to fulfill their baby's legacy, so they're the special one forever!