What "sex spectrum reality" is? There "less woman" or "more man"? And how is that "spectrum" reality is better to describe world? How it helps in medicine and healthcare for example? Where sex is binary works perfectly good. How "less female" will help anywhere and not do more harm? How calling every gender non-conforming person as new sex instead of saying that it is perfectly fine to look and act whatever you like as man or woman will be better and less harming? This just makes no sense and only creates harmful categories, which will hurt people, as being "less female" can make that person want to be "just female". Instead of saying that "less female" is still female and same female as any other female.

subjective

And what is subjective in sex is binary? Every single mammal species have binary sex, every single mammal is developing body supposed to support one of two gametes. How is that can be "subjective", if it is correct in 100% of cases for thousands of billions examples? Subjective is when it is different for each person perceiving it. Here it does not different for everyone, it is always the same, regardless of the watcher. While for sex is binary - it is completely depends on a culture of person looking, like "feminine" traits in the Western world can be "masculine" traits in the Eastern world. And through out the history it was the same, so when this "spectrum" changes depending on the observer - it makes it subjective, while two sexes are always the same, regardless of observer - this makes it objective.

So yes you can say who is a woman or man using this description

So say then. And what is different between man or woman by this. Or if there even man or woman in such vague system at all? And what are the words for all the rest sexes? What traits of each of those sexes on spectrum? And where new gametes too? Where new ways of those new sexes of sexual reproduction? Any answers?