Vietnam should be immediately requested to join QUAD..... it's a major power in that region and QUAD capacity will thrive with the entry of Vietnam ..... especially Vietnam knows very well how to take care of dragon....
To be together in the same camp with "super power" India? No, most Vietnamese look down upon India and has no favorable opinion about the US, at least us North Vietnamese.
Despite the rhetoric feeding to you on Internet by South Vietnamese members on this forum, we do not forget what the US did on our soil and how they are still nurturing the yellow-flaggers (South Vietnamese puppet regime collaborators who escaped in 1975) to attack us on daily basis.
However, for the time-being, Vietnam needs both USA and China. One is our biggest export market, and the other is our largest import market. However, it may change in next 5 years, if China can becomes our biggest export market as well.