The I is intersex, not intersexual. It is a term for people who are born biologically with a mixture of male and female traits, through chromosomal abnormalitie

The I is intersex, not intersexual. It is a term for people who are born biologically with a mixture of male and female traits, through chromosomal abnormalities or otherwise. This is something like 1-2 percent of most human populations, which is relatively significant, but we rarely know about, talk about, or recognize those people, hence the inclusion.