Qualitatively or not, do not stoop to racism and bullying. Vietnam is your neighbor and friend. I don’t think that speaking of disgusting things about this country, you will conquer a large market. Take an example from Vietnam and China - healthy competition.
Do not stoop to their level.
I...
It will be idiotic to intervene in a conflict with so many participants. But Russia has its own interest in both Vietnam and China. Can we all be friends?:(