Knusper, I don't think you (we) need to be ashamed, as it's a process for so many people.
In the past few years, I became dimly aware that 'LGB' had become 'LGBT'. I reckoned the 'T' stood for 'transsexuals', which I understood to be a number of vulnerable people with a MH condition that makes them feel their bodies are wrong, and who feel they need surgery and hormones just to be able to live with themselves. Of course those people shouldn't be abused and discriminated against. I'm bisexual myself and suffered that kind of treatment in the past, as have many of my friends. So I'm passionately against it for personal reasons as well.
Then I noticed, a couple of years ago, that some posters on MN seemed to be against 'equality for trans people'. It was on my radar but, again, I only registered it dimly - partly because I used to feel intimidated by the Feminism/Women's Rights board as on my brief visits everyone there seemed so much cleverer and better informed than me. So I didn't come on the topic much. For some reason, I didn't pause to wonder why all these articulate, well-informed, often left-leaning women, passionate advocates of social equality, had abruptly turned into raving bigots on this issue alone. For that, I am ashamed.
I blithely ignored or hid threads, for a very long time. It was only when discussions started about the BBC documentary, under a year ago, that I saw yet more 'anti-trans ranting' on MN and rather wearily decided to watch the documentary to see what the fuss was about. I was astounded by what I saw. Afterwards, I actually took the time to listen to what these women were saying, and it was a revelation. I can't believe I sat back on my liberal laurels for so long. Congratulating myself on being tolerant. Demonising those who had actually given the issue proper thought.
It's just as well I had eventually listened, because two months later my 15 yr old announced that she, too, was transgender. My family is in a terrible place just now, but I have the information that I needed. I dread to think what would have happened without it.