After this pandemic, I (and perhaps a lot of people, not only in Vietnam) can realize how primitive and barbarian Anglo-Saxon (most) societies still are. Not something I want to see in Vietnam. In some regards, Vietnamese society is far more advanced than yours.
You are rich, that's true, which explains well why people still want to go there. But still barbarian and backward. Again, it also explains why people still want to go there, because your people are not so competitive.
Just like India, American may need at least 500 more years to reach the current level of civilization of China, if it still exists then. Canada is a bit more civilized, but far to go.
(I have refused several chances to immigrate to Canada, if you want to know)