Is Technology Pro-Worker?

Technology gives EVERYONE a better life, 
but EVERYONE has fewer jobs available, 
and HALF the population has dramatically fewer jobs available.
Why?

Tech improves everyone's life. 
Tech destroys old jobs. 
Tech creates new jobs.
Tech creates fewer jobs than it destroys, so there is a net loss of jobs, but a net increase in living standards for everyone. Tech takes the low-hanging job fruit, so it automates the simplest jobs, leaving only complex jobs and, when it creates jobs, creating relatively complex jobs.

In 1800, everyone from age 5 to dead worked 12 hours a day, six days a week.
In the intervening two centuries, we have eliminated jobs for:
• essentially everyone under 18, 
• most people over age 65, 
• anyone going to college (30% of the working population), 
• reduced the number of workdays to five, 
• reduced the number of work hours to 40 
• Obamacare tries to reduce that number to 30.

By the standards of 1800, everyone today job shares. 
So, tech brings very much increased standards of living, greatly reduces the number of jobs, and right-shifts the jobs it DOES create to the right-hand of the bell-curve. While 50% of the general population by definition always has an IQ below 100, the jobs tech creates tends to be best-suited for those in the 100+ IQ curve.

Janitors and 40-year old fast food workers generally cannot retrain as IT network administrators.

So, EVERYONE gets a better life, 
but 
EVERYONE has fewer jobs available 
and 
HALF the population has dramatically fewer jobs available.

Is that pro-worker? 
Depends on how you define it. What happens is fewer to no jobs, but higher standard of living. If that fits your definition of "pro-worker", then it is. Otherwise, it isn't.