pj, there is a significant segment of the population that is gender dysphoric. Some individuals find ways to incorporate it in their lives with their loved ones happily, but this is not the case for many. Think of it .. most TSs in this forum who have transitioned say that a transitioner must be prepared to lose ALL in order to be herself (or himself if he is FtM). How many CDs and TSs live alone because there is such a lack of understanding in our society? This is pretty sad.
As much as we all like to vilify those who do try to define, they do so in an attempt to achieve a deeper understanding of issues in order to help TGs across the spectrum achieve happy and fulfilling lives. Definitions are necessary in order to build knowledge and to communicate ideas.
I don't know why some people are so reluctant to examine and define the issues.