The same should apply to automation. The inordinate inequality of wealth which is bound to happen with automation should be alleviated through heavy taxation. Or if tax is too dirty a word, ownership of such dual capital/labor should be partly socialized--i.e. newly created AI/robot companies must put up a % of their shares to the public who receive equal amounts.
If someone is capable of holding down that $10/hr job but not capable of landing a $15/hr job, they are harmed by an increase in minimum wage in two ways: 1. The direct loss of job, income, status. 2. They are now shopping in an economy where the goods/services they purchase are likely to be marginally more expensive.
I'm going to love watching the tech scene's existential panic over the next 2 decades as the population increasingly realizes that making CRUD apps and junk SAS is a job many Americans are more than capable of doing.
Hell most of the jobs that only require an undergraduate degree involve extensive on the job training; college is used as a weak signal for aptitude, interest, and class not really capability (this is the entire business model around coding boot-camps).
You can't just throw a laid-off factory worker into that position, though I agree, you can probable prepare him to handle it more efficiently than a 4-year BS degree program, which is what bootcamps are looking to capitalize on.
It matters a great deal to the employee to have been put in a situation like that before (homework & hobby projects) and developed a decent intuition & familiarity. It matters a great deal to the employer to know that that the candidate has done something like this before and will be substantially likely to succeed. There's a little more going on here than class signaling.
If the economic value of someone's labor is only $10/hr, they are less likely to be employed with a $15 minimum wage than a $9 minimum wage.