However, by focusing on what is a very small subset, are you missing the larger picture? I can understand curiosity and academic interest, but you're out there at the thin end of the branch.
I believe the only way to REALLY understand what leads an individual to crossdress is to enter into extensive counseling. I think the chances of us figuring this out by ourselves are not good. It is very difficult to be objective about ourselves.
It sounds like you think that you can "fix" yourself; that if you understood the "why", you could eliminate it. Was that your meaning? Patently NOT True if it involved gender identity issues and I would wonder about dressing for other reasons (sexual gratification, etc.). Concerning the other reasons, something has happened to make it OK (or legitimate) to cross a gender boundary.
Also, acceptance of those in the other parts of our disparate community should be the same as for any religious group, ethnic group, nationality, etc. Much like Unconditional Love, we choose to accept first. Hopefully understanding comes later. But to me, it sounds like you expect understanding comes first and then acceptance. If that is the case, you may never get to acceptance.
And as a piece of information, I do have experience in Diversity and Inclusion, Multi-culturalism, etc. I was involved in, and led, various employee affinity groups for nearly 20 years. In my career of 43+ years (now retired), I worked with, for and led people from 18 different countries. I was also an active member of our LGBT employee affinity group for 12 years and our Black engineer's group for 20 years (president for 3).
To close, I suspect that for many here, being exposed to the LGBT community (or at least the T part) is their first contact with the notion of Diversity and Inclusion. Further, this isn't Talk Radio B/S. This is real stuff because it often involves people with whom you actually come into contact. What interests and thoughts we share brings us together. Our differences are something to be appreciated, celebrated and respected. All too often those who wish divide and conquer attempt to use those differences to drive wedges and we must not allow that to happen.
DeeAnn