Hello! Thanks for being so lovely. I have been following this forum for a while, and everyone seems so supportive and welcoming.
For me, I think it comes down to lack of understanding. I knew the term "sex change" and that was about it and, to my shame, I didn't really think on it one way or the other. I didn't know GD made people suffer. I didn't truly understand it until my partner struggled with GD. I also think the term "trans" really doesn't help, because that is too easily confused with "transvestite" - and I can tell you, it's difficult to wrap your head around the difference, at first, as daft as that sounds for those suffering GD. In the early days, all I could understand was that my "male" partner was wanting to look female. My brain wouldn't make the connection between that and "him" actually being a female. It took a while. Since that time, I've seen a lot of people misunderstanding her GD. From simple, "You should just hang around with guys again. Guys will want you to be masculine", to "But in all my photos, you look male". As if it's a choice for you!
I'm sorry that I, too, didn't have much understanding of GD at first. So yes, more public awareness - especially of how appalling and unforgiving the condition is for you - would help immensely. But that's true of so many things in life, like conditions/illnesses/disorders (I suffer from a little-understood and untreatable condition).
Also, as someone who has had to confront the realisation of their partner being transgendered, I can say that, at first, when you hear that someone has realised they've been suffering from GD their whole life without knowing it, it's not so easy to see beyond the shell surrounding the person - the shell you had to manufacture to fit in society; clothes, mannerisms, ways of talking, etc. - to see the soul underneath. If you have known someone long enough, you don't actually see them any more - you see what you expect to see, the "shell". That's hard to unlearn, and I suspect harder for you since you have to essentially break your shell, find out who you are and should have been, and remake yourselves - and all the while, faced with a society that doesn't understand.
I have been lucky enough to have a gender that matches my body. Because of this, I didn't even really know that there was anything different. Now, I feel so ignorant, like because I was born okay, I was blind to others' suffering. I have so much sadness that society as a whole is so ignorant. The thought of things like GD doesn't even enter our comfortable little worlds.
But I think a lot of people would care and be hugely supportive if they knew more about GD and there was more support for you from professionals. But right now it's still a hush-hush topic, and that needs to be changed.