“The price of labor in the high-tech labor market is a function of a political, artificially created, ceaseless supply of immigrants. Prattle about the price at which American workers will do certain work is meaningless without a reference to borders and to the thing they bound—communities. Render asunder the quaint idea of borders—and the world is your labor market; communities be damned. Realize that this ceaseless supply of labor is maintained not through peaceful market forces, but through the use of political power, wielded by wealthy men and women with access. At work here is their Brave New Borderless World, not the invisible hand we love.”

Source: 1860s, Second State of the Union address (1862)

The existence of a market for labor is one of the distinguishing features of a market economy: workers compete to sell their labor at the most favorable price—meaning, in practice, the highest possible wage. At the same time, however, it is clear that the market for labor is qualitatively different from the market for goods, because workers need to sell their labor to survive.
Joel Blau and Mimi Abramovitz, The Dynamics of Social Welfare Policy (Oxford University Press: 2010) p. 68

(1847)

Source: Europe and the People Without History, 1982, Chapter 12 The New Laborers, p. 354.

"Who Owns the Benefit? The Free Market as Full Communism" https://theanarchistlibrary.org/library/kevin-carson-who-owns-the-benefit-the-free-market-as-full-communism (2012)

145
Multitude: War and Democracy in the Age of Empire

Progress and Poverty (1879)
Context: This strange and unnatural spectacle of large numbers of willing men who cannot find employment is enough to suggest the true cause to whosoever can think consecutively. For, though custom has dulled us to it, it is a strange and unnatural thing that men who wish to labor, in order to satisfy their wants, cannot find the opportunity — as, since labor is that which produces wealth, the man who seeks to exchange labor for food, clothing, or any other form of wealth, is like one who proposes to give bullion for coin, or wheat for flour. We talk about the supply of labor and the demand for labor, but, evidently, these are only relative terms. The supply of labor is everywhere the same — two hands always come into the world with one mouth, twenty-one boys to every twenty girls; and the demand for labor must always exist as long as men want things which labor alone can procure. We talk about the "want of work," but, evidently, it is not work that is short while want continues; evidently, the supply of labor cannot be too great, nor the demand for labor too small, when people suffer for the lack of things that labor produces. The real trouble must be that supply is somehow prevented from satisfying demand, that somewhere there is an obstacle which prevents labor from producing the things that laborers want.
Take the case of any one of these vast masses of unemployed men, to whom, though he never heard of Malthus, it today seems that there are too many people in the world. In his own wants, in the needs of his anxious wife, in the demands of his half-cared-for, perhaps even hungry and shivering children, there is demand enough for labor, Heaven knows! In his own willing hands is the supply. Put him on a solitary island, and though cut off from all the enormous advantages which the co-operation, combination, and machinery of a civilized community give to the productive powers of man yet his two hands can fill the mouths and keep warm the backs that depend upon them. Yet where productive power is at its highest development they cannot. Why? Is it not because in the one case he has access to the material and forces of nature, and in the other this access is denied?
Is it not the fact that labor is thus shut off from nature which can alone explain the state of things that compels men to stand idle who would willingly supply their wants by their labor? The proximate cause of enforced idleness with one set of men may be the cessation of demand on the part of other men for the particular things they produce, but trace this cause from point to point, from occupation to occupation, and you will find that enforced idleness in one trade is caused by enforced idleness in another, and that the paralysis which produces dullness in all trades cannot be said to spring from too great a supply of labor or too small a demand for labor, but must proceed from the fact that supply cannot meet demand by producing the things which satisfy want and are the object of labor.

65-66
Multitude: War and Democracy in the Age of Empire

Source: The Conquest of Bread (1892), Ch. 1 : Our Riches