Feels like perhaps yet another https://en.wikipedia.org/wiki/Inner-platform_effect that would be unnecessary if popular programming languages/virtual machines already supported determinism, metered and controllable stepwise execution and runtime state suspension, (de)serialization and resumption?
Why would you have to work harder when employers of jobs no one wants to do (for a given wage) have to either increase wages or embrace automation research and development (thereby likely speeding up its systemic adoption and reducing the necessity for manual work even more)?
Where developing countries have vendors on the streets, industrialized nations have vending machines instead, by pure economic and demographic necessity. The existence of an automation tool doesn't imply a human having to work harder somewhere else.
And why do you assume people would sit around doing nothing? I don't think that's a natural thing for most people to do.
How financial and social systems are set up seems to be very much a societal choice, unless it goes against some physical, basic economic or global trade limitation.
I measured my office too, with an Adafruit SCD-30 sensor, it also got to 1500ppm faster than I expected. And it took a long time (12+ minutes with fully open windows) to get it down to an acceptable level again. Certainly compelled me to do that more often.
Surprisingly, i couldn't find any calculator or theoretical approach for estimating this (given room of a certain size, how long does gas need to equilibriate with outside atmospheric composition to within some tolerance, through a hole of certain size)