GC means you believe when people are born (or for most people before birth) they are male of female and that no one can change sex.
In my case I reject gender completely as it is bad for society in general and women in particular.
In practice this means I'm happy to work with trans people, they are just people and I don't care what is under their clothes but when it comes to sports teams, girl guide chaperones, having to attend a rape crisis centre of being strip searched by the police, I don't want someone with male physiology to be accepted as a woman because they are not.
90% of male to female trans have had no surgery and do not take cross sex hormones. So are men in all but name.
My recent problem I can't go into detail but it was a MH group on zoom, as I logged on pronouns were being added and I didn't want to be asked mine because I don't want to. And yes it did make me feel unsafe, and by the same token had I said that I object to pronouns in signatures I may well have upset some people in the room.
It was resolved by the professionals having their titles rather than pronouns and attendees putting what they wanted.
OP
I'd word it as concern for all colleagues. EG
I have noticed pronouns are appearing on signatures, can I remind you that for some people adding pronouns can cause difficulty due to beliefs covered in the Equality Act and can also be hurtful to those who are, as yet, unsure.
I am also concerned about X and the news articles, you are making X stand out as different when I hope this is the opposite of what you wish to achieve. EG if a new starter wore a wig it would not be appropriate to send out stories about alopecia or wigs worn for religious reasons.