Zinnia Jones looks at the attempts at using chromosomes to exclude trans people.
She says:
“So what purpose does this [XX/XY chromosome ] model of sex serve?
Is this definition endorsed by those who are interested in most accurately capturing the prevailing usage of the terms “woman” and “man”? No – it ignores almost every feature related to sex except one.
Are they genuinely that fixated on chromosomes alone, with their classification of trans women as “men” just happening to follow from that? No – intersex people are almost never the focus of these arguments.
Could it be that this model is crafted specifically to invalidate and misgender trans people? It certainly seems like it.”