One-time paper of record unpersons JK Rowling to attract new subscribers among jaded Harry Potter fans who have exceptionally poor reading comprehension skills.
What Rowling actually wrote is worth reading (primary sources >>>>>>> secondary sources). Don't work backwards from the deranged backlash to conclude she must have written something hateful. She didn't.
It's worth examining what you'd have to believe to interpret what she wrote as hateful: that there either aren't any settings where sex matters or that there are some settings where sex matters but we should pretend otherwise and any woman who points it out is a bigot.
Overwriting sex with gender identity isn't necessary to protect trans rights. We can do that by recognizing trans people as in need of particular protections—no need to pretend sex doesn't exist and matter.
There are two aspects to this, both disturbing.
Firstly, what you describe, which is alerting us to what J K Rowling actually wrote.
Secondly, there is the insidious idea that we should not read an author's works, ANY of that author's work, if they fall foul of any of the current shibboleths.
By that token, we would end up reading only a tiny sliver of writers, who have not (as yet) stumbled over the many trip wires laid in our culture.
I genuinely despair for our children, and the next generation who are having all sorts of avenues cut off.
Something like this, Lianna: https://www.whsmith.co.uk/products/whsmith-a5-white-wide-ruled-writing-paper/3194440829844.html