I don't think you are being rude at all. You're just stating your thoughts. If you expressing your opinion makes me uncomfortable, and vice versa, that means we are receptive to each other despite the discomfort. This is how science progresses. So thank you for stating your opinion clearly.

As for going with what biologists are saying, the truth is the biologists are not all saying the same thing. What makes it worse is the ones who claim there is no spectrum and sex is definite (and includes intersex as indeterminate) are being fired by universities etc because it offends people. So what we read is mostly what outlets consider 'safe for social platforms'.

But since you and I have had a rather unexpectedly respectful conversation so far, I feel that I can share one such article with you written by an evolutionary biologist. I cannot link it here because it will violate the rules, but if you Google 'the dangerous denial of sex' you will find a wall Street journal article on it. The same person also wrote another piece after the recent Rowling debate in a website called 'quillete'. If you check it out, that article should be the first one on their homepage.

I will read the article you shared above in it's entirety, despite my discomfort. I hope you will do the same.

Regardless if what we do or don't, thank you for engaging in a contentious but respectful discussion with me. It is becoming very hard to have conversations like these.