First of all I believe that gender dysphoria is a mental illness and should not be treated with hormones and surgery. Having said that, it's their body and their choice and if that's what a person wants, they shouldn't face abuse or live in fear.
But just because you identify as a female does not mean you are one. Even after surgery.
You do not understand what it is like to be a female and the problems we face. You do not get to speak on behalf of women. You should not compete in female only sports.
Does that make me transphobic or simply someone who does not want the females to be second class citizens?