The two aren't really distinct at all. The only way to make them distinct, that is to make it possible for a biological man to be a woman in the context under discussion, is to restrict the definition of "woman" to what the person in question believes. I've been assured that this is not the case, but so far I haven't been told what makes a "woman". If one's own belief makes one's gender, and the only way to verify it is to trust one's belief, then it really doesn't tell us anything at all, since we know exactly what people's beliefs are worth.
How do you figure that? This word, and its synonyms, are being thrown around way too easily around here. Furthermore, I've already argued that being rude is irrelevant to the discussion. We're debating whether a man can have babies. Politeness has nothing to do with such a question. The only reason to bring up rudeness is to shut down the discussion, in fact.
How so?
Ironic, coming from you using words like "accusation" to mean "assertion".