I think the underlying issue was fear of male violence due to homophobia (transpobia which is essentially the same thing when it comes to men beating other men up).
This was back when transsexual was the thing and it was a smaller number of people with dysphoria etc.
It was that which set the idea that some men should be treated as women under some circs. I think using women's toilets was part of the 'proof' that you qualified for a GRC. (may be getting mixed up though).
As the definitions have grown wider and wider the idea that some men can and should be included in X. Essentially on their say so and no one must be allowed to question it. It's a very different matter.
And in the end it really doesn't make sense.
Because loads of men are at risk of male violence. Men who are perceived as gay, weak, effeminate, men who are disabled, of various races or religions etc etc.
The fact that
The risks to other men are never mentioned
The idea of tackling male violence, toxic masculine ideas about men who are different, other, more vulnerable etc is never raised
Leaves me pretty cold.
Why should one group of men get shelter from male violence but not others?
Why is male treatment of other males not on the agenda?
Orgs like stonewall have loads of support, money and influence. Taking this on would help gay men as well.
So why the silence on all of this?