The historical Vietnam was a joint creation of the ethnic Chinese and the ethnic Vietnamese. A few decades ago, the ethnic Vietnamese purged the ethnic Chinese. They have basically stolen the country from the ethnic Chinese.
Nowadays, they are no more Chinese than Outer Mongolia, Outer Manchuria or Burma. There is no need to feel any pity for them.
Vietnam must either be annihilated or rejuvenated with ethnic Chinese.
We can massacre Viets just like we killed 100,000+ within 28 days in 1979 but unless we reduce your population at least 50%, we will have a hard time restoring the greatness of our Annam province.
This is true. Japan already capitulated to China by agreeing to East China Sea military operation information sharing. They are so economically fragile now they are selling out the Taiwan independence supporters.
... and the reason why Japan is economically fragile is their demographic problem, which finally caught up to them like a poison finally arriving at the central nervous system.