I am not Afraid of the Root Word, Sex, in the Word "Transsexual"

http://womenborntranssexual.com/2011/06/19/i-am-not-afraid-of-the-root-word-sex-in-the-word-transsexual/
6/19/11
By Suzan

One of memes the ideology of transgender has foisted upon women and men born with transsexualism is the concept that the word "Transsexual" is bad because it has the root word "sex" in it.

What is the problem with the word sex?

Why do the words male and female seem almost taboo in the discourse regarding both transgender and transsexual?

Why are discussions regarding sex automatically considered "problematic"?