I've been trying to devise a brief, memorable GC phrase that simultaneously sums up why we are GC and offers a way forward without being antagonistic.
(Slight digression: when I first heard Trans Women Are Women, I understood it as the equivalent of an old-fashioned dog-lover's statement: 'Dogs are people'. He didn't expect his dogs to eat with spoons, but he recognised they had traits resembling humans' - e.g. sociability, loyalty - that made him feel as if they were people.)
A literal and incredible interpretation of the TWAW slogan as 'Trans Women really are Adult Human Females' has combined with male entitlement to be intractable to reason.
That biology is fixed seems to be anathema and misunderstood.
However it is attitudes around sex and gender that result in brutal misogyny; and in unhappy teens trying to identify out of their sex. It's not the biology but the ecology. And that could, should change.
'We can't change Biology, let's work on Ecology'.
'Biology is fixed; let's change what we can.'
'You can't change your sex, but you can wear it with pride.' 'Be the best trans you can; make life safe for Adult Human Females.'
Not very catchy, I know. I think I'm wasting my time. What I was hoping to come up with was something that politicians could truthfully say with conviction...