>> You gotta remember that automation also reduces the cost of these kinds of devices, allowing more people to acquire these devices and automate their tasks, pushing the entire population up the productivity value ladder.
Putting people out of work is not pushing anyone up a ladder. As one person gets more productive with automation their peers lose jobs.
From an economic perspective, if a factory owner replaces people with automation it's because it costs less. Hiring an automation expert and all the associated costs is a net win for them. But those jobs are higher paying, so we know it takes fewer people at the higher rate to achieve the owners lower cost.
>> Smartphones enable numerous tasks that people once had to hire another person to do for them, to be done automatically.
So first the automation put people out of work making smart phones. You try to counter that negative effect by pointing out how the phones help people but... Now the smart phones are making people more efficient, which as you say will eliminate more jobs.
Automation always eliminates jobs. The only time it frees up people to do other things is when those things are lower market value than what they were already doing - almost by definition.
I'm not against automation BTW, just against the common fiction that it's economically good for the working class.