A true hermaphrodite, I could understand having that attitude.
As most know, a hermaphrodite is a person born with both sets of genitals. Yes, I does happen. Until very recently, a doctor would ‘correct’ the situation so that only one set of genitals was present. Modern day parents may (foolishly) want to wait a while and let the child chose.
Some things remain constant. It’s much easier to get through life having one definite set, having one definite sex.
XX and XY genetically define 99.9 percent of humans. True intersex (at the chromosome level) might not exist.
Some XXs and XYs are born with premature organs of the opposite sex.
“Ambiguous genitalia isn’t a disease, it’s a disorder of sex development.”
https://www.mayoclinic.org/diseases-conditions/ambiguous-genitalia/symptoms-causes/syc-20369273
The reference presumes the infant is either XX or XY and discusses the probable reasons for the development or partial development or mere appearance of organs of the opposite sex.
The bring us to XXYs. This accounts for almost all other persons (0.1 percent). These people aren’t intersex. They’re males. They have a Y, which makes them male. They have an extra X, but this extra X doesn’t make them female or make them male and female. It’s just an extra copy of the first X.
https://www.nhs.uk/conditions/klinefelters-syndrome/
There are other chromosome-based disorders. To my knowledge, each is associated with people who are either male or female. Males, as per usual with disorders, appear much more at risk of chromosome-based disorders. But, females aren’t totally immune.