A man in a dress who thinks he is a woman is not a "transwoman." He is a delusional cross dresser. This is simply a fact.
The discussion of the non-issue of "transexuality" should never have gotten past that point.
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Anybody who is going to start mentioning what s/he heard in Gender Studies class and calling that "science" is going to get blocked instantly, because s/he's an ill-informed nut.
From the moment one starts with cultural relativism as an assumption, one isn't doing science. Academia needs to see some serious pruning.