You seem to want to misunderstand.
This is an additional post to existing ministers, committess or whatever. So nothing to do with having a Minister for Women.
But about signalling via this appointment what the priority is for Labour - ie trans rights.
As usual Labour politics is as much about signalling as about reality.
If they really cared they would appoint a working party to work through how the Supreme Court ruling can be implemented.
Although some would say that within our political system that is what the EHRC exists for.
So in a way this new post is also sending a signal to the EHRC even thought the Government is expected to take guidance from them, they are saying because they dont like it they are going to appoint someone to say what they want the implementation should be. ie focus on trans people, not of women.
Women know your place.
Go to the back of the queue