At the expense of drawing further ire then in a nutshell having someone who is presenting as female and running on testosterone really disturbs me and the same can be said for the other way around.
Sex/Gender Surgeory 101 ( sorry for the sarcasm NOT [well maybe a little] very tired of explaining this)
The orchiectomy: an operation where the testicles are surgically removed from a birthgendered male.
Effect: These are the primary organs producing 90 or More% of a males sex/gender hormone Testosterone.
The hystorectomy: an operation where the ovaries are surgically removed from a birthgendered female.
Effect: These are the primary organs producing 90 or More% of a females sex/gender hormone(s)
Estrogen/Progesterone.
End Sex/Gender 101 in a nutshell.
If ya wanna Talk the Talk and Walk the Walk then NO Natal Hormones for YOU! Gender change is all about DOING AWAY with BIRTH GENDER HORMONES produced by ones body. Its pretty simple when it comes down to it. Having people Presenting as their opposite gender and maintaining an identity to their birthgender just doesn't cut it ( pun intended ) with me.
I have NO idea as to why you have brought up F->M's bottom surgory

Byee,
Brina