Previous question worded badly.. I'm being excused of all sorts so.. Here I go again..?

I think you need to get past the terminology and the narrow confines of the well travelled arguments you use. Look at people as individuals. If you are born genuinely feeling/believing and being forced to be a you aren't then it is more than 'frustrating' or a 'mental disorder' It is a living, breathing misery and pain. That is why there is no 'pretence' or 'game playing' involved when someone is a trans ual. It is who they are biologically, physically and mentally!