The bullshit about XY chromosomes is pretty stupid, which is why the other replier provided an article and a few key points in refutation.

The OP's comment didn't read to me as particularly incendiary, but thanks for labelling them as transphobic and mouth breathing with no precedent! Really appreciate good contributions to discourse like yours.

EDIT: not sure what the downvotes are for. XY chromosomes are not exactly valid for determining sex, much less gender. Women might have Y chromosomes, or even three copies of X. Gender has nothing to do with this at all, in fact.

Using XY as an argument is therefore bullshit.

Even if it's bullshit, there's no need to call someone a mouth breather unprovoked. The other thread seems to be a shitshow anyway, so I'm glad the replier is being called out.