What do you think about more than two sexes quote?

Question

What do you think this quote means? :
"There are as many [human] sexes as there are people. " from Reconstructing Gender. Estelle Disch. 2003
John Stoltenberg: “How Men Have (A) Sex”

And

Do in what way (if any) do you feel that quote fits with this quote:
"It is the people who fail to fit the pattern whose legitimacy is questioned rather than [the legitimacy] of the pattern itself." From, Women & Men in World Cultures, Laura F. Klein, 2004

The frist quote mentions "sex" as anatomy, not sexuality.

Answer 1

Human sexuality is not either male or female. The notion that there are only males or females is a primitive over-simplification, a notion that hails from ancient times before medical studies of the human body, aided with modern technology, had ascertained the truth. In fact, no two people's bodies or hormones or neurological constructions are alike. All humans fall along a continuous spectrum from very masculine to very feminine in physiology and genetics. The "legitimacy" of the ancient "patterns" or understanding of human sexuality is defunct. The error all along has been in that backward, ignorant and subjective perception rather than in the individuals who were naturally "correct" in wherever they fell along the objective, truly "legitimate" continuous spectrum of natural genetic predisposition of sexuality characteristics.

Answer 2

1 it means that sexuality and they way people enjoy and have sex is different for everyone. As each person is attract to someone else for different reasons. Also there is asexual people and people that are attracted to other things not humans.

2 Its means there is no pattern or one size fits all. Each culture and person is different. you can't just categorize people, you will be proven wrong. Not everyone is the same.