Yes I want to continue as you don't seem to understand.
Here is some news from today.
Birth rates in China rose to their highest level since 2000 last year, despite a fall in the number of women of childbearing age, say officials.
The increase follows the relaxation of China's strict one-child policy
a year ago.
http://www.bbc.co.uk/news/world-asia-china-38714949
Your estimations are completely wrong i.e. that China will go the way of Japan.
I agree China has to take many steps from their current state, but they are making ground fast and I gave you the academic source you can read-up, if you subscribe to Janes.
As for the whole NATO like partnership, there is information sharing, that's a given, anything more is questionable due to the sensitive nature of the region.
I can't comment on the whole Vietnam issue, I don't know much about it.