Intersex is outdated. DSD/VSD is now used for disorders/variations of sexual development. These are several (see table) and very rare. Still, even when there are chromosomal variations, the path to produce gametes is binary: large or small. Secondary characteristics are a spectrum, but sex is binary

This above literally said "three" by grouping all DSDs together. Now, secondary sexual attributes like height, strength, testosterone levels, etc. appear as a spectrum, but that doesn't mean that there is a sex spectrum. For sexes, in mammals,there are 2 options.

DSD are just disorders, not a third sex. There are several (very infrequent) as in the table. Gender is language and feelings, but it cannot change sex. All mammals come in 2 options, those that produce large gametes and those that produce small gametes. Simple.

A DSD is just a disorder. It is like being born with 6 fingers. It is NOT a different sex. People with DSDs are still able to produce only large or small gametes, not both. Table attached. There is no third gamete. But that kind of science is not liked by the woke or Wikipedia editors.