I didn't say that most folks think that, I said that most folk who deploy the term "science denier" think that. And while it was obviously couched in a little bit of hyperbole, the point is that they often think that there is more than two genders, and in many instances they believe that there are more than three genders, and sizable portion of the ones that believe that there are more than three genders believe that there are a LOT more than three genders, and their opinion on the matter is obviously not rooted in science. Unless of course you include junk science.