The worker is a member of which class according to marxist theory

proletariat

Explanation:

Capitalist society is made up of two classes—the bourgeoisie, or business owners, who control the means of production, and the proletariat, or workers, whose labor transforms raw commodities into valuable economic goods.

The proletariat

Explanation:

There are 2 classes: the rich people who do nothing (bourgeoisie) and the poor workers (proletariat).

The workers mentioned in your question are... workers so they fall in the working class, or proletariat

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