Proceeding on from this, the Manifesto presents the argument for why the Communist League, as opposed to other socialist and liberal political parties and groups at the time, was truly acting in the interests of the proletariat to overthrow capitalist society and to replace it with socialism.
Temeljem toga, Manifest iznosi argumente zašto Liga komunista, nasuprot drugim socijalističkim i liberalnim partijama i grupama toga vremena, uistinu djeluje u interesu proletarijata da ukine kapitalističko društvo i zamijeni ga socijalističkim.