I'd have to agree with a lot of the things said, I wouldn't take it either.
I haven't even started transition yet but I still know I wouldn't take it, because then I wouldn't be me.
To help with my dysphoria in some ways I just keep reminding myself a Dr Seuss quote: "Today you are You, that is truer than true. There is no one alive who is Youer than You"
My dysphoria is a part of me so taking the pill would, in my eyes, be removing a part of me.