I am not trans, but I am gay, and I very much support my trans brothers and sisters.
There is a great quote from Thoreau - "Could a greater miracle take place than for us to look through each other's eyes?"
It is easy to judge people you don't know, and especially if you haven't lived their experience, because they are the Other, and many overlook the humanity in their being.
When I was a teen, my conservative religious mom showed me a video of gay men saying that they had decided to become straight, because the "gay lifestyle was so destructive, and so lonely". Even though I knew I was attracted to other guys as a child, I believed the video and thought gay people were terrible.
As time has gone on, I came to realize that the depression many LGBT people have stems from them being treated quite poorly during childhood and their teenage years for being different. My parents made me go to conversion therapy when I was 18, and I basically learned from a Christian psychiatrist that I was a bad person, my mom paid lots of money, and no change occurred, except to strengthen my self loathing and depression, all in the name of conforming to straight society and being a good Christian.
One of the biggest lessons I've learned from having been born gay is how much empathy and compassion I have for people who are different or treated as less than.
I wish you and Mr2005 could see the world through my eyes.
I am somewhere on the spectrum of BDD, not to an extreme, because I can leave my house and such, but I struggle very much with how I look, and it consumes many of my thoughts throughout the day. I can only sympathize with you. Sending you love! <3