The question "How would humans adapt if low-wage labor was done by robots?" postulates a world where low-paying jobs are automated away while jobs that require "ingenuity" (i.e, higher-paying jobs) are not:
Background: Nearly all low-wage labor is done by humanoid robots (retail, factories, transport, sanitation, construction, mining, and similar fields). These robots have all the physical capabilities of humans and more, but jobs that require ingenuity and adaptation such as design, management, etc are still done by humans, and technology allowing robots to fill these jobs is millennia away.
Consider an alternative scenario, one that is slightly less plausible, but far more interesting:
Humanoid robots are expensive. This means that they are only useful in the long-term if they can get rid of humans who happen to be even more expensive. They might not be better than the humans, but if they're "good enough", the cost savings would be enormous. So let's automate away all those high-paying jobs, using randomness as a good approximation for ingenuity. Use neural networks to design items, use machine learning and pattern recognition to decide what employees to hire and what sectors to invest in, etc. Get rid of all those silly white-collar "design, management, etc." jobs.
Meanwhile, what about the low-paying jobs? Okay, it would be theoretically possible to automate away retail/factories/transport/sanitation/construction/mining/etc. ...but why? The human employees are already cheap. Any cost savings would be minimal, and it'd just be more efficient to hire "meat" than it is to use machine labor (which would be better suited for all those jobs that require ingenuity and adaption anyway). So, don't bother automating those jobs away.
Now, you have a bunch of extremely smart white-collar workers who are now unemployed. What will they do? Will they accept lower-living standards if they take the low-paying jobs that are still available (and thus compete against the blue-collar workers who will be upset at the new competition)? Will they rebel against the machines who just took their jobs? Will they try to turn the 'low-paying jobs' into higher-paying jobs (and in doing so, risk having corporations trying to automate those jobs away to get cost savings)?