She actually has three kids: Jessica, David and Mackenzie.
Basically she said (and doubled down on) the fact that there are only two biological sexes.
In 2019 she tweeted:
"Dress however you please.
Call yourself whatever you like.
Sleep with any consenting adult who’ll have you.
Live your best life in peace and security.
But force women out of their jobs for stating that sex is real?
#IStandWithMaya #ThisIsNotADrill"
This was in support of Maya Forstater, a woman who was fired from her job after she tweeted "Smart people I admire… are tying themselves in knots to avoid saying the truth that men cannot change into women (because that might hurt mens feelings).’
JK Rowling is and always has been standing up for women, but ironically, SJWs can't see or accept that.