>Brave New World is a utopian novel desperately trying to appear dystopic. With just a few small changes, to account for the existence of automation/robots/computers, the darker aspects (e.g. the population of deltas) stop being plausible within the universe.
Others commented on the 'utopia' part, I'll just note that your observation was accounted for.
Already in the novel it was noted that reducing working hours was trivial, well within the capacity of the powers that be. It wasn't done because deltas did not want it. The speaker might have been biased on that last part* , but should be well-informed on the first given his high-ranking position.
* It could be that the speaker did not asses delta desires correctly, or that the actual reason involved social stability.
> "Technically, it would be perfectly simple to reduce all lower-caste working hours to three or four a day. But would they be any the happier for that? No, they wouldn't. The experiment was tried, more than a century and a half ago. The whole of Ireland was put on to the four-hour day. What was the result? Unrest and a large increase in the consumption of soma; that was all. Those three and a half hours of extra leisure were so far from being a source of happiness, that people felt constrained to take a holiday from them."
(Note the implicit english attitude to ireland, or compare some of our current deltas' attitudes to quarantine.)
Others commented on the 'utopia' part, I'll just note that your observation was accounted for.
Already in the novel it was noted that reducing working hours was trivial, well within the capacity of the powers that be. It wasn't done because deltas did not want it. The speaker might have been biased on that last part* , but should be well-informed on the first given his high-ranking position.
* It could be that the speaker did not asses delta desires correctly, or that the actual reason involved social stability.