RocktheCasbah I've had three friends transition over the last twenty years or so ... three fairly complicated people, two women and one man. Today, they are all happier and more fulfilled than once they were, leading imperfect lives like the rest of us.
Just three anecdotes, but it induces vertigo to think of these cases while reading anti-trans preoccupations about bathroom intrusions and elite sports.
That stuff is just not at all in the picture for these people. I'm talking about an art gallery curator, software developer and a rural high school teacher, neither upsetting anyone nor infringing anyone's rights.
When you observe someone transition you see that "biological sex" is very far from static, binary and immutable. Tip different hormones into an adult body and, subject to many limits of course, that body's expression plastically changes.
That's nothing simple, but it's likely to keep on going because of hormones becoming a commodity. In the words of the recently deceased David Lynch, "fix your hearts or die".
If you want a real, proper social problem to worry about, may I recommend crystal meth addiction and psychosis. I'd be perfectly happy to man the barricades with a few wingnuts if it would keep that shit away from my communities.