Such as their education level? Is that specific to South East Asia somehow?
The vast majority of Vietnamese American came to the US not really as immigrants seeking newfound opportunities, but as refugees who have lost their home. I imagine such a sudden uprooting has made them somewhat insular, as they bound together in a foreign environment for which they were not prepared.
yes East San Jose is a hotspot for displaced Vietnamese, who took the American side in the extended, ugly and deeply damaging conflict there. A war that almost all of the people in this area of California deeply and without fail, protested.
No, but I also haven't moved to Vietnam permanently. I can't imagine navigating another country with a low English or Danish proficiency and not wanting to learn the local language, if I planed to stay there permanently. It seems like you would be making life extremely difficult for no good reason.