Communism is the polar opposite of capitalism.
... unless, like a lot of Americans, one equates capitalism with corporatism (a.k.a. oligarchy), which is not that far away from communism: both mean the economical and political power are concentrated in the hands of a small number of people, which dispose of it as they please and can't be held accountable for their actions; in other words, communism is man exploiting man, corporatism (American implementation of capitalism) is the other way around.