I think it has little to do with unemployment on the long term. Humanity has been "automating" jobs since the invention of the steam machine. Some might say even further: since the invention of the horse and carriage, since the invention of the wheel.

If you look at the amount of automation we've got going on compared to 50 years ago, 10% unemployment is surprisingly low. Apparently, our skill in automation is only surpassed by our skill in finding new problems.