"Not a good basis for making laws or policies then."
No, I should say not. It's inherently difficult. But I get the sense that they're working on a very, very base-level sense of human rights, here. They're consciously working against the majority view (expressed explicitly or not) that trans people are so much 'other' - weird, odd, screwy, perhaps even contemptibly so - that none of the rest of us need care about them as humans.
Sheesh. I remember watching 'The Naked Civil Servant' decades ago, and thinking, 'what must it feel like, to go out walking in fear of being beaten up, just because you're gay?' (Quentin Crisp is walking in the park, and gets attacked by some skinheads. As it happens, he says something to the effect of 'Oh, right, this again' - it's such an ordinary experience for him.) I think we're mostly past that, now, re gay people, I think. But we're not, re transgender people.
We do have to have some statutary, formal recognition of transpeople in place, I think, as people of the same value as any other humans. I'm only talking about very basic principles, like that. Just enough of them such that they can get by, to some minimally comfortable and safe level, without their lives being made any harder and more miserable than they need be.