See, ludog, I can understand that there are children who struggle with their gender identity and who want to be something other than a narrow gender conforming boy/girl.
However, I do have a problem, when that child's needs are prioritised over my child's need for privacy and respect.
There was a good article linked elsewhere on this site (I''ll see if I can find it) where it explained that gay rights are about equality with straight rights. Neither imposes by diminishing the other.
But, there are some elements of trans friendly policies that impose on others. E.g. the insistence on pronouns, or the "right" to be in a changing room, prison or bathroom that people of the opposite sex use.
To me, that is about ideology.
And that ideology seems to care not one whit about XX female people.