Socialism is a transition period between capitalism (and other modes of production that came before it) towards communism. Socialism even by Lenin's and Marx's words is a period riddled with contradictions. The state's role is to work towards communism. China is applying marxism-leninism to its context and is doing amazing while at it. Strengthening the productive forces as to combat imperialism is the way to go and China knows it. China doesn't need western ultra-lefts living at the tit of the empire to tell it what it has to do to ensure the survival of its sovereign state for the betterment of the working class's material conditions.