What you say is correct. And beside the point.
Robots (despite the recent DARPA challenge which made them look incapable) are rapidly replacing a certain class of human workers.
Automation is replacing another class.
Both are happening faster than people can earn enough to retrain.
And that was the key challenge of the luddites. They didn't want to stop the machines- they wanted training on the new machines and the owners (capital) refused. So many of the luddites died homeless of exposure and starvation- pretty much as they correctly assessed. And the next generation forgot about them and closed ranks.
Robots are rapidly replacing jobs which simply require that you have eyes and hands and can perform a manual tax.
Automation is replacing jobs where you follow any kind of predictable procedure.
Will all jobs go away? Never. But we already see decreasing workforce engagement by working age citizens from 16 to 67. It's masked by the way they do the numbers for unemployment, but the reality is that the number of working age citizens who can't find work has risen for the last 15 years.
If we shared the wealth via some kind of basic income- we'd probably fine. But instead, all that extra productivity benefit is filtered to 10% (and really 2%) of the population who then says "get a job" to the people they won't hire. Hungry people get violent. There is a direct correlation between low employment and lack of benefits in 2nd world countries. We need to address the issues in the 1st world before we have mass riots.
It's much cheaper to provide assistance ($19k) vs imprison people ($31k) annually.