wontforget clearly hasn't been around long enough to remember that the UK's first attempted "transphobia" prosecution was a woman bringing a case against a transwoman.
And we were firmly on the transwoman's side, not the woman's, for the same reasons.
The identity of the people involved is irrelevant to the principles.
Only difference would be in degree of direct relevance to the feminist forum - procedural unfairness to women is more on topic - but upholding principles universally is important to everyone, which includes women.