I am as GC as they come and I don't really care about pronouns. I inwardly roll my eyes as I personally think it's bollocks but hey ho, if it makes someone feel better then all power to them.
I think trans people should live they way they want to - to an extent. If that means dressing in ways they perceive makes them a woman, dress, heels, make up (I only do 1 out of these) then fine. Doesn't affect me at all.
It's when it does affect me as a sex class it becomes a problem, which is accessing sex based spaces which women have fought hard for, being comfortable in toilets, changing rooms, places like prisons, sports, rape crisis centres. Hopefully I'll never have to access some of these but I recognise other, mostly vulnerable women, do, and it shouldn't be with biological males, no matter how they identify.
Women are statistically more at risk of harm from men, and unfortunately we don't know the ones from those with a genuine gender dysphoria just wanting to live their lives as authentically and quietly as possible, from those who seek to harm us. They don't come with a flashing warning.
Hence why spaces are separated by sex in the first place. A lot shout 'harmful men will access these spaces anyway!' if they want to harm, but that's like saying what's the point of locking your doors, having a ring doorbell, if burglars are going to burgle anyway. It's called SAFEGUARDING.
Inclusivity doesn't mean getting to access any space you want.