I may be a bit biased because this is related to the sector I've been working in for the past decade. But what's wrong with machines doing menial, repetitive and sometimes dangerous labor? Do you feel the same for all the office workers with their calculators, books and spreadsheets that have been replaced by ERP systems? Occasionally new technology "replaces" a person's job, but at the same time that technology creates new jobs (not necessarily as many, I concede) as it needs people who develop and maintain it.
There is nothing wrong with wiping floors or being a plumber, both are honest jobs. But that was true for phone operators, too; still, for the better part of the last decades you have been using the telephone system without one.
As long as it is cheaper to produce goods and deliver services at the other side of the globe because of missing (or not respected) labor and environmental laws, automation is not the main cause of people being without jobs in the "industrialized" world.