"We should sympathize with independence-liberation movements (獨立解放運動) of other nation-states (民族國家) We will assist the anti-Japanese movements of Korea or Taiwan, or anti-German, anti-Italian movements."
Zhou Enlai, 1941
In fact, from the founding of the Communist Party until the Cairo Convention in 1943, the position of the Communist Party of China was that Taiwan was (or should be, pending liberation from Japan) an independent state. Only after the war did the CCP claim Taiwan as its own, and only in the decades after Mao's death has it become an obssession.