Why would you assume that was the fault of computers? There are many social, economic, and policy changes that would have much larger effects.

It's not the fault of computers, but they changed the fabric. It was a select few of our fellow humans, who also did deregulation, financialization, and globalization. They all started at the same time and have concentrated wealth and power the last 4-5 decades.

Computers are still a significant factor because most new tasks created were cognitive and needed university education. Or another way, the automation that computers brought eliminated jobs in labor, but we did not create new jobs for those people. The three others were instrumental in that side of the equation.