Look man if China wanted to rule , as you declare they would have already occupied hong kong but it was returned back by England as a token of peace .
With Vietnam , the issue is very simple to protect the waters in Asia from military presence of countries that should not be there
From a realistic point of view Vietnam should view China's prosperity , as a sign that China will also create jobs for Vietnamese as they are its close neighbors - it does not means China intends to capture Vietnam ... no
Its a very simple mind game played by US to scare people in region into thinking China is doing something special , I mean USA has 200-300 ships , and Japan has 100 ships if China makes one 1 ship (Air Craft carrier) it does not makes China stand out instead China is just making enough ships to safe guard region from future intrusive forces.
The dialog between China and Vietnam friends is wonderful sign towards prosperity and away from none sense drama
"For Peace"
It does not matter how slowly you go so long as you do not stop. - Confucius
Remember its not cowboy show down , like in wild wild west human life is important and there is no need for drama
This is a oil spill by a Ship near New Zeland seas
Reference:
BBC News - Oil spill disaster New Zealand's 'worst in decades'
Do people in Vietnam approve of such oil spills due to accidents in oil facilities by outside countries ?