"I think women are foolish to pretend they are equal to men, they are far superior and always have been" - William Golding
Many people were reacting approvingly (including the usual SJW, feminist, "equality" crowd). For example the original poster Totally Bound Publishing repeatedly promotes their LGBTQI fiction sister company with the slogan "Love knows no gender!"
Which was no surprise, given what "equality" and "sexism" mean (to non-"True Feminists", at any rate).
What was interesting, though, was the context in which William Golding made this sexist comment:
Girls say to me, very reasonably, 'why isn't it a bunch of girls? Why did you write this about a bunch of boys?' Well, my reply is I was once a little boy - I have been a brother, a father, I am going to be a grandfather. I have never been a sister, or a mother, or a grandmother. That's one answer. Another answer is of course to say that if you - as it were - scaled down human beings, scaled down society, if you land with a group of little boys, they are more like a scaled-down version of society than a group of little girls would be. Don't ask me why, and this is a terrible thing to say because I'm going to be chased from hell to breakfast by all the women who talk about equality - this is nothing to do with equality at all. I think women are foolish to pretend they are equal to men, they are far superior and always have been. But one thing you can't do with them is take a bunch of them and boil them down, so to speak, into a set of little girls who would then become a kind of image of civilization, of society. The other thing is - why aren't they little boys AND little girls? Well, if they'd been little boys and little girls, we being who we are, sex would have raised its lovely head, and I didn't want this to be about sex. Sex is too trivial a thing to get in with a story like this, which was about the problem of evil and the problem of how people are to live together in a society, not just as lovers or man and wife.
So perhaps he decided to be sexist against men as a pre-emptive defence against the feminists who he knew would be trying to persecute him (and this was in the 1950s).
Bonus WTF-ness:
"lord of the flies doesnt show the base human condition, it shows the base privileged straight white male condition, incredibly when i point this out people get kind of annoyed"