China is essentially a country cobbled together from lesser countries. Almost every major ragion would like to break away. Weigirs, Mongolia, Taiwan...if China allowed Taiwan to walk away other would soon follow suit and the country as we know it would vanish... They see Taiwan and making an example out of it and Hong Kong as the key to the CCP strength and longevity. They will do ANYTHING to maintain that including using nukes. If the SCS falls after they have claimed it, it will be construded as a direct attack on the homeland, for which they would defend to the death. Without it, they have no way to feed itself...
SCS....South China Sea?
Just because the Chinese communists want something doesn’t mean it’s theirs.
Children learn that pretty young.