From 2018 thread above, I wrote and remain of the same opinion,
"The purpose of a passport is to travel to other countries.
Identifying males and females may be of significance in some important situations.
All countries understand sex.
Gender ideology is not universally recognised or understood.
It is possible on passports to add additional significant information.
It goes on a particular page.
To not recognise the wider implications of changing the way that such an important document as a passport records or removes the factual status of sex is naive at best and dangerous at worst.
My thoughts are that with regards passports then sex indication matters more. Since their primary purpose is for international travel rather than id, I think there are a number of circumstances when the treatment of women / men would be different. Whilst I agree it is good that gender stereotypes are being broken down, this is happening differently throughout the the world.
There are other forms of id eg driving licences which can also be used for employment purposes where removing sex markers perhaps would be better changed"