Straight from the Communist manifesto.
The Communist Manifesto was written in 1848, when the Industrial Revolution has destroyed cottage industries and created some of the worst economic slavery conditions, because unions and labor protection laws has not yet been created.
It was a bit naive, but well intentioned:
{...
The first section of the
Manifesto, "Bourgeois and Proletarians",
[6] outlines
historical materialism, and states that "the history of all hitherto existing society is the history of class struggles".
[7] According to the authors, all societies in history had taken the form of an oppressed majority exploited by an oppressive minority. In Marx and Engels' time, they say that under
capitalism, the industrial
working class, or '
proletariat', engages in
class struggle against the owners of the
means of production, the '
bourgeoisie'.
[8] The bourgeoisie, through the "constant revolutionising of production [and] uninterrupted disturbance of all social conditions" have emerged as the supreme class in society, displacing all the old powers of
feudalism.
[9] The bourgeoisie constantly exploits the proletariat for its
labour power, creating profit for themselves and accumulating capital. In doing so, however, Marx and Engels describe the bourgeoisie as serving as "its own grave-diggers"; as they believe the proletariat will inevitably become conscious of their own potential and rise to power through revolution, overthrowing the bourgeoisie.
...}