I was literally about to go to sleep when this popped into my head
The defining feature of a chair is the BACK. It's a PIECE OF FURNITURE meant to seat one individual, with a back. The back is mentioned in the actual definition.
Seats are more abstract. They really should have gone with that for their little "gotcha" regarding what a woman is.
Perhaps we should start calling trans identified males "Chair/s" as a funny sort of "slur" to illustrate that just as there is a solid definition for chair, there's also a solid definition for man, and they really suck at trying to confuse us on what either of those things are, as much as they'd like to.
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