Socialism is not about the government's size. Socialists, particularly Marxists, emphasize using the state and nationalization after proletarian revolution to reflect the working class' interests and build socialism, but the size of the state itself is not what makes something socialist, both because (1) socialists seek to eventually end the state itself once productive forces and consciousness are sufficiently advanced and (2) capitalist states can also have large governments, generally to serve the interests of the ruling class, albeit sometimes in a roundabout way.