haha yeah this is true.
Many of the viets I've known have been dealers and grow op runners. Equally nuts, though less in numbers are fuckers from laos.
Almost every single Vietnamese or Cambodian family in my town has a grow op. No better way to make money when you immigrate here with no education and only farming skills. It's kind of sad. But a lot of them use the capital to buy homes for themselves and family, send money back to Vietnam and to eventually start a small family business so they can pay taxes and get legal income to sponsor family members.