This flamewar is wretched enough without embedding an even more wretched and off topic flamewar into it. If you do that again, we will ban you.

It's also, in this context, a personal attack. If you do personal attack on HN again we will ban you.

This is a tactic typically invoked by people with a anti-trans agenda. Gender, sex and sexuality are in fact multi-dimensional things with some broad clustering.

Either the argument is, "Gender isn't real, all cultural norms stem directly from biology." Obviously and trivially false. Or the argument is, "Gender should be destroyed as it holds people back," which is just a semantics game to penalize some LGBT+ people choosing taxonomies to describe their experience that other people don't like the visibility of."

> If you were born as male - you are male. If you were born as female

It's a tad more complicated than that, even at the biological level. Your sex is determined by your chromosomes, but for example, you can be born with chromosomes XXY. Which biological sex is XXY? Admittedly, this is an extremely rare occurrence. I guess you could argue that "presence of Y = male, absence of Y = female" to make it unambiguous.

There are peopel born with XY chromosomes that have functioning uteruses and ovaries. So its obviously not as simple as "There is a Y here."