Take a look at the chart you provided "Prevalences of various conditions that have been called intersex"
Why does it have a "Sex specificity" column? Why does it contain the words male and female?
Why does it have a "Sex specificity" column? Why does it contain the words male and female?
The reason for that is the actual verifiable existance of people who were born here clearly, scientifically, medically as neither M NOR F.
They are valid exceptions to the above quote from the Nye program and there are enough people born this way to number in the thousands in a country of some ~ 23 milllion or so.
The passport system was changed as a citizen of this country fronted and objected to having enter M or F when they were born clearly neither.
As someone with a science background who measures and models reality I approve of systems that track the world and its elements as it is and as they are .. rather than models that force a world view that doesn't match reality.
As Richard Dawkins recently clarified, "As a biologist, there are 2 sexes. And that's all there is to it." It's binary and there is no exception. People that claim otherwise are confused.
If one wants to make a simple statement that encompasses the largest group of people they might say, "There are 2 sexes." If they want to make a more complex statement that encompasses all humans they might add a qualifier such that they instead say, "There are 2 typical sexes." That "typical" adds a whole lot of complexity in order to generalize the statement.
The semantic sparring over sex and gender has a pretty simple compromise, that people who want to say it is a spectrum and people who want to say it is binary should be able to agree on and be happy with:
it is a bimodal distribution
of course the problem is that is a nuanced idea and humans can't handle nuance. Maybe you can, and I can, but WE as a human group can't. We prefer to drive ourselves literally insane over the semantic argument. oh well.
this isn't something that most people are familiar with, especially people who tend to see things in binaries (not because they're stupid, but because they're trained to see the world in binaries, because it's the simplest classification system which makes it easy to manipulate by politicians and media).