I'm not sure what a "gender proponent" is, but Dawkins has come out and written some pseudo-scientific bullshit about there only being two sexes/genders, and that everyone fits nearly into one of them. Which is patently false. Intersex people are a real phenomenon, and are not clearly classifiable into either sex. Dawkins has made a fool of himself by claiming that a real biological phenomenon can simply be ignored when conceiving a theory of sex (and gender).
In other words, Dawkins has gone off the deep end. He doesn't really have credibility as a researcher or public intellectual. He's with the grifters now.
This embarrassing conservative grift is part of an anthology filled with drivel from other grifters: The War on Science", edited by sex pest Lawrence Krauss [1].
[1] https://www.simonandschuster.com/books/The-War-on-Science/Da...
I don't know about cranks and conservative grifters, but it's definitely not a feature of the "gender critical" position which I thought Dawkins was broadly aligned with. That's more that "sex" is absolutely binary, with your "intersex people" being umambiguously classified through genetics, while "gender" is too vague and undefined a term to be useful for much of anything in the public sphere.
> Dawkins has come out and written some pseudo-scientific bullshit about there only being two sexes/genders, and that everyone fits nearly into one of them
It'd be surprising for Dawkins to make any kind of definitive statement about gender. I do think that your use of "sexes/genders" in that sentence is symptomatic of exactly the kind of conflation you're complaining about. "There are only two sexes" is a completely different statement from "there are only two genders", and far more defensible.
You are wrong about intersex people being genetically classifiable. There is no deterministic causal relationship between genetics and sex characteristics: as an example, a person with XX chromosomes may develop external male genitalia and v.v. for XY chromosomes. But of course, for most people with XX and XY chromosomes develop, this is the other way around. See how genetics do not explain this?
