+> I've seen one anti-transgender argument around that I take very seriously. The argument goes: we are rationalists. Our entire shtick is trying to believe what's actually true, not on what we wish were true, or what our culture tells us is true, or what it's popular to say is true. If a man thinks he's a woman, then we might (empathetically) wish he were a woman, other people might demand we call him a woman, and we might be much more popular if we say he's a woman. But if we're going to be rationalists who focus on believing what's actually true, then we've got to call him a man and take the consequences.
+>
+> Thus Abraham Lincoln's famous riddle: "If you call a tail a leg, how many legs does a dog have?" And the answer: "Four—because a tail isn't a leg regardless of what you call it."
+>
+> [...]
+>
+> I take this argument very seriously, because sticking to the truth really is important. But having taken it seriously, I think it’s seriously wrong.
+>
+> An alternative categorization system is not an error, and borders are not objectively true or false.
+
+But this is just giving up _way_ too easily. The map is not the territory, and many very different kinds of maps can correspond to the territory in different ways (we have geographical maps, political maps, road maps, globes, _&c._), but that doesn't mean _no map is in error_. Rationalists can't insist on using the one true categorization system, because it turns out that—in all philosophical strictness—no such thing exists. But that doesn't release us from our sacred duty to describe what's actually true. It just leaves us faced with the _slightly more complicated_ task of describing the costs and benefits of different categorization systems with respect to different optimization criteria. If different political factions prefer different criteria, we describe that conflict. There's no objective answer to the question as to whether we should pay more attention to an animal's evolutionary history or its habitat—but given one criteria or the other, we can say definitively that whales _are_ mammals but they're also _dag_/water-dwellers. That there exists an element of subjectivity in what you choose to pay attention to, doesn't negate that there is a structured empirical reality to be described, and not all descriptions of it are equally compact.
+
+In terms of the Lincoln riddle: you _can_ call a tail a leg, but you can't stop people from _noticing_ that out of a dog's five legs, one of them is different from the others. You can't stop people from inferring decision-relevant implications from what they notice. (_Most_ of a dog's legs touch the ground, such that you'd have to carry the dog to the vet if one of them got injured, but the dog can still walk without the other, different leg.) And if people who work and live with dogs every day find themselves habitually distinguishing between the bottom-walking-legs and the back-wagging-leg, they _just might_ want _different words_ in order to _talk_ about what everyone is thinking _anyway_.
+
+The topic of exactly how to apply these philosophical insights to transgender identity claims is a deep and fascinating one of prime sociopolitical relevance in today's Society, a topic about which many things could be written in support of any number of views—which is why it's such a shame that Alexander doesn't apply his prodigious wit and eloquence to address the topic at all.
+
+Okay, that's not quite true. Alexander has one, and apparently only one, argument to make—namely, that accepting transgender identity claims benefits transgender people: