Communism can only be truly global. You can have worker coops in a servive economy, which is a form of Socialism, but depending on the production outsourced in Capitalist manners means the economy overall contributes to global Capitalism, which can eventually take on the character of Imperialism.

Most 1st world economies are in fact Imperialist, they cannot exist in the manner they do without hyper-exploitation of the global south.