Ego is an amazing thing, what exactly does china/Xi think they/he will gain with a destroyed Taiwan.
If “stolen” land is the driving force then Russia should be nervous.
Wonder what west reaction would be if China made the move in Russia? Strongly worded letters?
China has much more to gain by grabbing the resources of Eastern Russia/Siberia.
Russia would nuke them. At least a little.
But Russia is in no position to counter a significant conventional move against them in the East.