Before the industrial revolution we had serfs and artisans. As the factories absorbed both the serfs and the artisans, the serfs saw it as an upgrade, while the artisans resented the new way of life. Through workplace organization, which usually involved serious risks, working conditions improved for everybody and reached a certain equilibrium by the 1950's. The lessons learned through workplace struggles in the last…
People should take a look at the list of "Major armed conflicts in American labor union history" at the bottom of the page and get a feel for how many people died for the more comfortable version of wage-slavery we have to day.