The future of Taiwan is therefore not a Chinese matter. Hong Kong, on the other hand, was leased to Britain. Takeover of Hong Kong by China may be considered reversion. An attempt by China to take over Taiwan can only be viewed as annexation or invasion, and therefore boils down to Chinese neo-imperialism. The Communist government in China has never had sovereignty over Taiwan, even for a single day.
China has no legitimate right to any claim over Taiwan.
Taiwan has been a de facto sovereign nation for decades. Taiwan now has a democratically elected president and is moving inexorably towards de jure independence. The future of Taiwan is for the Taiwanese people to decide, not for China to dictate. China has committed major offenses in the international arena. Nobody should wish Chinese annexation upon Taiwan.