I am not asking this to be transphobic or anything but I had this debate with myself at 2 o’clock in the morning and every time I remember it I can’t focus.
On one hand, it is what they want. Let’s assume it causes no harm to them or any unforeseen circumstances.
On another hand, it would erase their identity as trans people. At the extreme you could consider it a genocide, since turning them into what they want would mean there is no more trans people and their unique identity is erased.
That is one of my conundrums. If all trans people get turned into cis people, the community would cease to exist altogether.
Destruction of a community, especially globally, would be genocide. By trying to make a group of people happy with who they are, one ends up committing one of the greatest atrocities against them imaginable.
A community is just a social construct. If all members are alive and happy and choose to leave, no one was harmed.
It’s all about consent.
That’s why it has to be a choice.
Society at large is a community identity too, and many trans folk value that community connection more than I do for example. Many of us would absolutely choose the magical option you suggest in your initial post, but for others of us like myself, it would come with an incredible sense of grief and loss. I spent my life learning to embrace and love this part of who I am, and to have that taken away, just so I can blend in to the society that made the process so hard in the first place, that would be a punch in the stomach for me…