Since the 20th century,Western scholars,whether from an idealist standpoint or a bour-geois perspective,have propagated that communism is a utopia,that the new developments in con-temporary capitalism render the theory of the"Two Inevitabilities"outdated,and that capitalism is it-self the End of History.These claims constitute the so-called three major challenges:the Commu-nism Utopia,the Obsolete Communism,and the End of Communism.However,both theory and facts reveal that communism has always been rooted in material economic realities and starts from the real conditions of human beings,rather than being an abstract utopia detached from human nature.The fundamental contradictions of contemporary capitalist society still exist,and the theory of the"Two In-evitabilities"remains relevant.Additionally,international communism,in both theory and practice,is currently thriving,indicating that communism has by no means ended.