To put it in terms rabid leftists can understand “the science is settled.”
There are only two genders.
High blood pressure, blood clots, strokes, cancer, rates of suicide twenty times greater among adults who use cross-sex hormones and undergo sex reassignment surgery, child abuse - you can’t make an omelet without breaking a few eggs.
“There are only two genders.”
You’ve fallen into the language trap “they” have set for us.
There are only two sexes (sex being biological).
There are countless “genders” (gender being a social construct, and constrained only by the imagination).
“They” changed the language, so that we can’t think about these things clearly any longer. (To “them”, Orwell wrote instruction manuals.)
Gender is word for languages. :>)