Your experience is anecdotal and cannot be said to represent most of all the refugees from Vietnam, even when it is true that many were ethnically Chinese - it makes no difference. Most of the Chinese in Vietnam were Vietnamese citizens, of ethnic Chinese origins, with families who had been part of Vietnam for generations - just like the Chinese of any Chinatown in the U.S. If there were “refugees” from the U.S. (for some unimaginable reason) would you classify Japanese Americans as not really “American refugees”?
The article is total BS. The criminals need to be sent packing. We can work with Viet Nam vis a vis China. That $4 billion we promised to pull out? They reneged on their promise to leave the South alone. Trump can open it up again.
http://factsanddetails.com/asian/cat66/sub418/entry-4308.html
Prior to 1975 the ethnic Chinese population was about 5.3% of the Vietnamese population. Between 1975 and 1980 it was reduced to about 2%, primarily through expulsion from Vietnam by the Vietnamese government.