The situation is directly analogous to that of closeted gays. The more trans people who come out, the easier it will be for individuals and for society at large to accept them. But many of those in the vanguard will pay a terrible price.
> It's mind-boggling to me, really.
I felt similarly about concept of homosexuality as a teenager back in the late 1980s. When I found out that a musical hero of mine (Bob Mould) was gay, I thought hard about the issue. What was it like to be gay? Could I be gay? What does it feel like to be attracted to someone of the same sex? It was a worthwhile exercise, regardless of the conclusion.
You may not know any Nobel Prize winners, but there sure are a lot of books about them you could read, which would give an idea of what's going on their heads.