All these epicycles within epicycles attempts to persuade us that sex isn't binary and that this somehow has something to do with trans issues always make the same two fallacious moves, and try to present these fallacious moves as gotchas.
They start from the correct premise that both the chromosomes and the embryological pathways controlling the development of the reproductive system are complex and that there's therefore scope for lots of things to go wrong. (Remarkably, given this huge scope for things going wrong, it works out just fine 99.9% of the time unless you artificially inflate the percentages by including minor cosmetic differences which most geneticists and embryologists don't categorise as intersex conditions).
They then make the first fallacious step - that the existence of intersex conditions means that ordinary members of the public therefore struggle to correctly work out sex in the other 99.9% of cases (see for example that fatuous statement in parliament yesterday about women with beards).
They then add the further fallacious statement that this has anything whatsoever to do with being trans. Trans people are no more or less likely to be intersex than the general population - in fact as far as I can tell the typical late-transitioning transwomen usually does so after fathering several children.
TLDR - women don't have penises.