Tax is kinda tangential to all of this, but:

> Tractors largely replaced human labour in farming about a hundred years ago

And what happened around that time? yeah it wasn't a period of smooth calmness was it? Periods of massive changes in productivity (ie lots of people going into unemployment) causes huge societal changes.

The thing that staved off revolution in the US was lots of spending, banking regulations, federal reserve, new deal and the like. Those that didn't do that, fell.

So its less about who pays tax, and more about who is going to give money to the unemployed?