There are a lot of positives to being born in the exact body that your mind is, e.g. a female body for a female mind, but being born trans is not all that bad either. There are positives for being born transgendered, at least for me.
I know my family and more importantly myself. I know without a doubt that I would not be as accepting of people and their differences had I not been born this way. I know for a fact that I would have taken gender for granted. I would have bitched and moaned about my period. I would probably not have considered being bisexual or truly open. More than likely, I would have followed the pack and be anti-LGBT. I definitely would not have considered having LGBT friends. Okay, I do not have any now, but I almost did, just this gay guy did not want to be friends. :-(
More importantly, I do not think that I would have been as sensitive as I am, gone into computers, liked Star Trek, or even just stayed a girl. I would have become a woman and be someone totally else.
In many ways being trans has helped my soul to grow and to see life as a spectrum.
Okay, I am not happy about all the lost years or should I saw decades. I am still ticked for not being able to go to my prom. I always imagined wearing a beautiful dress and having someone ask me out. I miss all the girl experiences, although I would have taken them for granted. I am big enough to say that I know myself, and I would have sad to say.
Yes, I would love a natal vulva and plumbing, not to mention a G-spot. Medical science cannot give transgirls a g-spot as far as I understand, or can it? They can put parts of the penile gland woven into the vaginal wall, or at least one SRS surgeon did, but that is something different. Maybe one day. Yes, there was this other thread and the consensus was 30-years. That is truly a double ho hum.
The point that I am trying to make is that going back in time and changing the past also changes events, emotions, and may other things. It is not a sure thing that changing the past would make the alternate reality better. One person here wrote that they would go back and have their mother take something extra to ensure a female child. That change could have resulted in God knows what changes, maybe for the best but maybe for the worse.
By the way, I am not saying that I would wish to be trans or anyone else to. I would want my own children, etc. To my knowledge, I did not ask to be trans, or at least I sure hope that I was not that stupid, but as long as I am here, there is good that came of it.