industrial wage-earner:
in Marxist theory, a member of the industrial working class whose only asset is labor sold to an employer
Oh! I didn't get it because America has never had that until the illegal aliens arrived.
Never heard of indentured servants, or The Irish, The Italians, and in places the Poles and even Germans (late arriving immigrants at least.
What we didn't have, was subsidies for immigrants, especially illegal ones. I guess you could call the Homestead Laws a subsidy, but at least one had to work the land to earn it, and of course one had to be a legal immigrant (which was much easier in those days to be sure).