[sho]

> try visiting Little Saigon on Bolsa Avenue in Orange Country

> If you want to get assaulted [..] try bringing Vietnam's current flag and parade it around

What a bizarre argument. Of course you're going to find pro-USA sentiment in the very people who decided to move to the USA. I hope you realise that the opinions of a few immigrants in the states are going to be pretty unrepresentative of those who actually live in, you know, Vietnam.

Speak to actual vietnamese people from actual vietnam and I don't think you'll find they are overwhelmingly pro-USA, nor at all interested in the flag of south vietnam. I'm no expert, but my experience is that they're mildly positive in attitude, mostly due to pop culture. The war was a long time ago and most people are just getting on with their lives.

Many immigrant communities foster a kind of "nostalgic nationalism" as a coping strategy when adapting to a profoundly different environment. It dates pretty rapidly. I very much doubt many of the 90+ million people in Vietnam even know of "Little Saigon", nor care overmuch about the opinions of a bunch of old-timers sitting in a mall in California.

[refurb]

Actually, Vietnam is one of the most pro-American countries in the world. There was a survey a while and over 90% view the US favorably. You can find it with a google search.

[rangibaby]

That is more to do with China than America though

[refurb]

Some of it is, but some of it is that many VIetnamese went to the US after the at and so their family is there and they can see firsthand the benefits of living in the US.

Also Vietnamese are fiercely capitalistic. I've never seen a more go-getter attitude in any other country. That also colors their perception of the US.

[sho]

> many Vietnamese went to the US [..] they can see firsthand the benefits of living in the US

This applies to many countries. Why does it specifically influence Vietnamese perceptions more?

> Vietnamese are fiercely capitalistic

This is true, but again, they're hardly alone. Chinese are fiercely capitalistic as well - and in the same context as the Vietnamese, within the framework of a nominally communist society. Why doesn't your theory apply there, too?

I think the situation is much more nuanced than these too-obvious theories, or that can be surfaced in superficial "attitude" surveys. As mentioned in other comments, Vietnamese are deeply (and IMO rightfully) suspicious of China, despite the state's theoretical status as an ally. The USA, despite its history of botched and ham-handed interventions, is ultimately seen as a friend. There's a love/hate aspect to that attitude too, similar to Filipino attitudes to some extent. The absence of military bases in-country helps by keeping the notion theoretical, rather than the often-negative daily experience of having foreign soldiers around a la Korea and Japan.

Anyway, without getting too much into the weeds of theorising and speculation, my point was that it's complex - more complex than the OP suggested. Nostalgia for the South Vietnamese flag is a niche sentiment at best, and attitudes to the USA are a complicated product of history and pragmatism. "90% positive" does not capture the nuance, in my opinion.

It's probably too late but it would have been good to hear from some non-emigrant Vietnamese.