Never heard of this author, but he’s a real card “what the meaning of ‘his’ is.” LOL.
I am with him. If someone was born a male, they are still a male even if they’ve had a lopitofomy. If someone was born a female, they are still a female even if they’ve had an addadictomy. I’m not in the habit of indulging mental illnesses by calling a male a “she” or a female a “he.” Unless they actually lopped off his Y-chromosome, a man’s a man.
A co-worker at my part-time job is a man-to-woman transsexual - uses the ladies’ room and all.
I have a horrible time not calling him “sir” to his face because for me, the chromosome test is the ultimate arbiter.