> You initially claimed that it doesn't matter what "women" means when you ask, "Do you sincerely believe that a person becomes a woman simply by self-declaring it?"

No, I said it doesn't matter to to the point I am making what I believe, except that I reject that particular definition, because it is absurd on its face. I may or may not reject any number of other definitions of "woman", it's besides the point.

As an analogy (futile, I know): There are many definitions of what a "doctor" could be. For example, I can accept the definition that "a doctor is someone has been licensed to practice medicine". I can't accept the definition that "a doctor is anyone who self-identifies as a doctor".

Of course, according to the definition that "a doctor is anyone who self-identifies a doctor", someone who self-identifies as a doctor is a doctor. It's obviously true and obviously absurd.