Are you aware that the source you provide contradicts your own narrartive?
The Gini Index according to the World Bank in any democratic 'capitalist' country is lower than in China, in many countries even by a third. And the Gini provided by the WB is even lower than China's official index as the World Bank factors in lower prices in rural areas. This means that China's inequality is even higher according to the Chinese government's own data.