Yup, as I expected. Ever been karotyped? No? Neither have 99% of people on the planet. Under your definition, how exactly do they select a bathroom, again?
I can't help but believe you are being facetious with me. Most people don't need genetic testing to know what their sex is.
And amusingly enough your solution creates exactly the same problem as the policy you're supposedly objecting to, only worse. You're telling people who were born with vagina- some of whom have given birth! to use the men's room, and vice versa for guys. (you're also making it literally impossible for some people to pee or use a locker room, but hey).
Do you have any idea how rare a scenario that is? You're telling me that segregation based on sex doesn't work because and estimated less than 1 in 10,000 people might have abnormally developed genitals, that we should throw out the concept of sex? Should we throw out the concept of gravity because we can't reconcile some of the more complex gravitational problems surrounding the big bang?
I'm not sure where you got the notion that I'm throwing out data. I'm acknowledging that intersex people exist, but I am maintaining that their existence does not invalidate the notion of sex. They are the exception. They are considered a genetic abnormality. Just like being born with Klinefelter's is a genetic abnormality. I understand that it's all the rage in trans communities to proclaim that people born with genetic abnormalities are in fact "normal", however they are not.
Closer to 1%.
I know you read the rest of that paragraph in the source you provided:
However, the incidence of 46,XY gonadal dysgenesis, in which genetic mutations result in disruptions of the testis development, is estimated at less than one in 10,000 live births.
Now remember, that's an estimate because there is insufficient data to even show that 1 in 10,000 are born this way. Actual data shows a much lower incidence rate. And even when people are born with 46,XY, not all people present with abnormal genital development. The actual rate of gonadal dysgenesis is much lower than even 1 in 10,000.