Seems to me that Stonewall at some point realised that campaigning for gay rights has mostly been won in this country - it's no longer unlawful, we now have gay marriage, hate crime laws etc - so the only thing left to keep them existing is trans rights.
(I appreciate stigma & violence still exists towards gay people, which is awful and must be tackled. I'm thinking here primarily in terms of policy campaign wins).
Except that trans rights already exist I.e gender reassignment under the Equality Act. Trans people can marry etc.
The ONLY barrier to so-called 'trans rights' is when they conflict with women's rights.
This is the policy barrier, perhaps THE only barrier, that Stonewall can campaign against in order to stay in existence and keep the money rolling in.
Thus it's become:
the right to gender neutral loos
the right to be on women's shortlist
the right to compete in women's sports
the right to request only the use of gender neutral language
the right to access women's changing rooms
the right to be recorded by the police as female
the right to be placed in the female prison estate
the right to apply for jobs advertised as 'female applicants only
And of course, they can only campaign for trans people provided the number of this once tiny minority keeps growing.
By adding T to LGBT, their policy capture includes an implicit threat to organisations that if they dont fully promote Stonewalls notion of trans rights, then that organisation will be seen as anti-LGBT and it will damage their reputation.
Fascinating and sinister.