Khrushchev gained power by intentionally lying about Stalin, demonizing the socialist project, and implementing reforms that ultimately undermined the centralized system of the USSR, leading to stagnation and collapse. Deng, on the other hand, refused to do so:
Not only did Mao Zedong Thought lead us to victory in the revolution in the past; it is - and will continue to be - a treasured possession of the Chinese Communist Party and of our country. That is why we will forever keep Chairman Mao's portrait on Tiananmen Gate as a symbol of our country, and we will always remember him as a founder of our Party and state. Moreover, we will adhere to Mao Zedong Thought. We will not do to Chairman Mao what Khrushchev did to Stalin.
Whether the socialist market economy of the PRC looks like the perfect ideal of socialism in our heads or not, we must recognize that the same failures caused by Kruschev have not come to pass:
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Marxism-Leninism/Mao Zedong Thought and Deng Xiaoping Theory are the core of Socialism with Chinese Characteristics, rather than a rejection of Mao and historical nihilism.
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Socialism is upheld in the PRC, the large firms and key industries are firmly in the hands of the state, while the CPC maintains strong control of the medium firms.
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The centralized system of socialism in the PRC is upheld. Social unity in collective purpose is high, even if there is broad diversity in thought, there is unity in continuing to improve and develop socialism to higher stages.
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Rather than stagnating due to clunky liberalization undermining the planned economy, economic growth has stabilized and increased, allowing the PRC to commit to vast infrastructure projects and serve as an alternative to US Hegemony from within the global market.
The market reforms are not without their risks, nor their contradictions, but to be good Marxists we must correctly analyze material reality. The failures of Khrushchev and the successes of Deng's market reforms are both lessons in practice. Dogmatism and book worship are to be opposed.