If someone wrote this book today you would think they have listened to too much talk radio, and I think it's one of the best examples of what Leo Marx called 'the machine in the garden' myth.[1] the anxiety of (predominantly anglosphere) authors that technology and industrialization disrupt their naturalistic and God given, pastoral community.
I think I might be one of the few people who read the book and came away liking the one world government more, because the book completely and utterly failed to convince me how it is anything but fear of modernity, technology and the liberation of women from reproductive obligations. That last part is very important and in that respect the book has aged particularly poorly. The author of the essay at the end calls the book a warning of 'feminine tyranny', and I think that's exactly right. Huxley seems to be dead afraid of a society in which the monogamous family is washed away by technology and higher forms of social organization, without really making the case why hanging out in the reservation is supposed to be any good.