This small group is trying to change society to its own ends - there is no buy in from the public but they are trying to push it through behind the scenes, through court cases like this.
They believe that gender identity is a feeling which has nothing to do with biology or how you present in your day to day life.
So for them, markers like pregnancy, or keeping you full beard, are irrelevant. Sure, some people like the stereotypical behaviour and dress sense of their preferred gender, but it is unnecessary - the internal feeling is what matters, and it's up to you what you do next.
Of course, a lot of our institutions have been lapping this stuff up. Luckily the courts are applying the law, not interpreting it for the benefit of this little group.
But it is getting ridiculous.