In the event of an ill-advised attempt at an amphibious invasion of Taiwan, would the Chinese Three Gorges dam be destroyed utterly? Would their two oil pipelines overland from Russia be severed in multiple spots? We all have weak spots to be exploited during conflict.
The three gorges dam is having problems on its own. Chinese concrete is crap. Corruption in China is rampant. You can find videos of Chinese buildings collapsing or someone breaking the rebar with their hands. If there even is rebar in it. 20 year old Chinese concrete buildings crumbling away. The Chinese produce crap. All command and control economies do.