This is true, and the good work that Stonewall has done in the past shouldn’t be forgotten, but frankly they have only themselves to blame for their current dire reputation because they allowed themselves to be hijacked.
The really sad thing is that other organisations who signed up to the Stonewall creed have lost supporters because of it, I have been a member of Amnesty for many years , have taken an active part in many of their campaigns including the amazing Violence Against Women campaign , but have cancelled my membership in protest at the way they are ignoring women’s rights in favour of a few loud shouty people.