It is "humanism" that should run in the veins of the thinking humanity, not a certain gender-oriented "ism". This entire book is a treatise on gender equality, and as such, it may be hailed as a work of feminism, but it is not - it is a work of humanism.
If you call yourself an "authoress" on your Facebook profile, you suck at life. You are stupid and your children are ugly. It doesn't matter if you're just trying to be cute and original. You're not. You are about as original as all those other witless twits "writing" the one millionth shitty Fifty Shades clone. Or maybe you're trying to show your 2000 fake Facebook "friends" that you are an empowered feminist who will not stand for sexist terminology. But you're not showing people that you are fighting the good fight, you're showing people that you are a sheep, who's trying just a little too hard to ride the current wave of idiotic political correctness. The word "author" is no more gender-discrimination than the word "person." Do you call yourself a personess? No, of course not, because then you might as well wear a sign around your neck that says, "Hello, I'm a retard.