• Men don't have vaginas except when they do
Some babies are born with ambiguous genitalia due to a DSD which may result in a baby being incorrectly "assigned" the wrong sex. This doesn't mean that men can have vaginas,
• Your sex is your sex recorded at birth except when it isn't
It can be recorded incorrectly when a DSD is involved. As we have always stated. This does not apply to the vast majority of people who claim to be the opposite sex.
• XY chromosomes mean you're a man except when it doesn't
In the majority of cases this is true. Sawyers and CAIS have already been discussed on this thread. As stated then, IK doesn't appear to have either. And again, these do not apply to the vast majority of people who claim to be the opposite sex.
• An awful lot of people seem to think they have magic insight into what's in Khelif's pants, how she went through puberty and what her testosterone levels are when actually none of us know this
No. We have come to a conclusion based on the failed tests, higher testosterone (as confirmed by their coach), longer reach and body build.
• Biology is basic, sex is simple
Again, in the vast majority of cases it is. Does a baby bring born without legs mean that we are not a bipedal species?
• JK Rowling is definitely the cleverist woman on earth
No one said that. Someone just said she is cleverer than you.