'Also GC beliefs are not protected. Your right to have the belief is protected that's all. I can still call it out as nonsense etc'
If believing that the most basic, always known, universal to mammals and many other animals and plants, fact of male and female and sperm and egg, is 'nonsense' then where does that leave us?
In real life sex matters.
Why when Daesh take people for sex slavery do they know how to choose? Because it's vagina people. Who are deemed to be 'old enough' once they start growing public hair. Who are traded to other men when their current owner tires of them.
Boys on the other hand are indoctrinated and forced to fight- child soldiers.
All over the world all the time there are consequences for people due to their sex.
If it's nonsense then it's very widespread nonsense. And taking on correcting it will be a huge task. And is it really likely that the people who do these things are going to start doing it on gender ID rather than sex?
I haven't misunderstood have I? I don't think so.
Please do let me know if this is not what you're saying.