Multipolarity is not the end goal but it is a pathway to socialism because it represents the dismantling of the West's unipolar imperialist hegemony which has been the greatest obstacle and enemy of socialist movements since 1945. I strongly recommend that you read this: https://internationalmanifesto.org/wp-content/uploads/2021/08/through-pluripolarity-to-socialism-a-manifesto-final.pdf
Also, Multipolarity is emerging whether we as communists like/want it or not, because it is the result of objective processes of development that have been occurring for the past half century.
You cannot stop this process, and believe me the imperialists have tried very hard to do so by attempting to slow down, stop or even reverse the development of the global south.
So it is a reality that we have to acknowledge and understand how to make the best use of in order to further our goals.