quillette.com/2020/06/07/jk-rowling-is-right-sex-is-real-and-it-is-not-a-spectrum/
This article might help your confusion, Robin
Or this thread
threadreaderapp.com/thread/1271379316291624961.html
Or this article
womansplaceuk.org/2019/10/21/biological-sex-is-not-a-spectrum-there-are-only-two-sexes-in-humans-with-claire-graham/
Or this editorial:
www.wsj.com/articles/the-dangerous-denial-of-sex-11581638089
Or this recently published scientific article might help:
<a class="break-all" href="https://sci-hub.tw/link.springer.com/article/10.1007/s12129-020-09877-8" rel="nofollow" target="_blank">sci-hub.tw/link.springer.com/article/10.1007/s12129-020-09877-8
If you're pressed for time, I suggest reading that last article, I like how it's written. Here's the first paragraph.
This article says nothing novel. It discusses a fact as well-established as the billions of years of evolution that shaped our species. We live in a world, however, that increasingly ignores such truths, and in which the combination of awareness and courage to set the record straight appears rare.
It's madness, honestly. OF COURSE SEX ISN'T A SPECTRUM, how on earth did people get this brainwashed? We aren't clownfish, we have no reason to be this confused. All our ancestors must be laughing their deceased bollocks/ovaries/overocks (wait, literally none of them had those, how weird) off at us.