But if we say that transmen are men, as they are giving birth, what does the word "man" mean?
That's a great question.
It's also a hard question. If you think about it, there are an awful lot of qualities that we identify as "male" or "female", yet few of them are absolute applying universally to every man or woman.
At the same time, somehow we figure it out. We're all able to correctly identify men and women with nearly 100% accuracy without ever looking at their genitalia. If we can do that, then maybe the genitalia alone isn't that important?
Not every man has a deep voice, hard muscles and facial hair. Not every woman likes make-up, has a petit figure or long hair. Some women are really good at math, engineering and chess. Some men have a great eye for colour. Some women have facial hair, some men have really smooth skin. None of these characteristics are 100% accurate predictors of gender.
So if none of these things are 100% accurate predictors of gender, maybe it shouldn’t be so hard to just add having a penis or a vagina to that list? If someone can,
have a beard and still be a woman, then maybe having a penis shouldn’t be a disqualifier either. Is that so hard?
It is at best nonsensical, relying on a circular definition. At worst, it asserts that behavior is what defines a man. See Joe Morgue's posts on that issue.
Complex is not the same as circular, and nobody is asserting that only behavior defines a man. If that were true, nobody would need hormones.
And if there were no real world consequences, then it wouldn't matter, but there are real world consequences. It's pretty darned rare that the real world consequences include a dead baby, but the other real world consequences matter as well.
You're attributing that still-born child to transgenderism. That person identified himself as trans when he went to the hospital. That "real-world consequence" is of the hospital miscommunication.
When Karen White rapes women in a female prison, that's a real world consequence...
Women rape other women in prison. While Karen White is certainly an awful human being, her being trans didn’t create that particular problem. Make that particular person disappear, and women will still rape other women in prison.