I think the important question is: are you okay with significantly lower wealth / quality of life, or are you saying "I don't want to work so hard (but somebody else should, because I sure do like all the things we have in this society)"?
The hermits going to Alaska with an axe, a saw, and a dream to build a small cabin and live off the land and watch the bears catch salmon, those are certainly ready to make that trade. But your average Western academic talking about work-life-balance? I wouldn't rule it out as a possibility, but it'd be a first.
Yes, the adjunct professor, famous for their work-life-balance.
One solid income used to buy an entire house. Why can't I want to work less and still have a large apartment? And that's without even considering productivity gains.
People can budget for entertainment without long work weeks.
I don't demand much in terms of restaurants and travel and hotels, shrug.
Websites are not expensive to run, and the cost of social media if directly paid for would be single digit dollars a month. Negligible in terms of someone's entire budget.
Just to start, you’re assuming we are using our resources and human labor efficiently.
Which is understandable, and that choice should be theirs to make -- if they accept that it has a direct impact on everything they get, and don't rely on others working more to compensate for them working less.
Surely you have more imagination than that.