donquixotedelamancha I am a little confused by your post. You say that you have a problem with my using one set of terms for biological sex, and another for gender, and then go on to give reasons why you have a problem with this.
Yet your reasons pretty much revolve around the need to be able to, in some contexts, refer to someone's biological sex. Which those that take my approach are not precluding. Amd even those people who do want to use male/female/men/women all for gender, well with them you can refer to the XX or XY-chromosomed when needed.
But identity is important to people, and not the sort of thing someone can just change because you think there would be advantages in doing so. You can argue all you want that people should see their nationality as being wherever they were born, but to the patriotic Welshman whose mother happened to be in Scotland at the time of his birth, well he is not going to just say fair enough I'll stop being Welsh I'll be Scottish if you think that makes analysing certain stats or social phenomena more convenient for you.
Also, point 4 is interesting. What lies are you talking about? Thinking that a current definition or conceptualisation is wrong and wanting people to alter it is not about truth and lies. I mean, if someone claimed that asking to redefine marriage away from 'one man one woman'' to 'two persons' is asking people to accept "lies" wouldn't that imply that there is some sort of objective dictionary. To my mind truth amd lies are for objective stats, not what people think concepts mean.