what makes China remain together, and remain great is communism and socialism.
Dear friends,China isn't moving away from socialism. It's simply the most successful socialist country in the world's history.
Yes, what made China great is the 1949 Chinese revolution and the overthrow of capitalist system in China. In the meantime, all defenders of socialism need to be vigilant that the socialist cause in China is indeed under attack and has seen severe erosion as capitalist class grow stronger in China.
The deplorable wealth gap in China is a reality, so is the lack of social warfare, and other ills of capitalism. While Marxism is still the official ideology, the government never dare to use the tool of class analysis in fear of antagonizing the capitalists, domestic and foreign.
For example, the government is unwilling to call the U.S. imperialist, or calling out its capitalist ruling class for their crime against humanity. Hell, they don't even dare to call Chinese billionaires capitalists, with many of them are CPC members.
The great USSR, who industrialized China and made the U.S. imperialists shaken, was sold out from within by officials who wanted to enrich themselves and their friends/family. The privatization of China's public owned economy shows the same trend in slow motion.
So the slow capitalist restoration has brought damaged environment, sever inequality, slowdown of wage increase, high housing cost, poor safety-net, significant unemployment, financial instability, racial animosity, moral degradation...
The resurface of all these old craps of capitalism and rising of a capitalist class, which was eliminated after the revolution, reminds us that socialism is under threat in China.