Vietnam.
Never underestimate the depth of feeling among emigrants' children. To this day, I have lifelong Cuban-American, Iranian-American and Syrian-American friends who refuse to visit their home countries due to the political repression their parents went through. Sad, but what can you do.
Friends: Do you ever think about visiting Vietnam?
Vietnamese-American: No, why would I want to visit a country stupid enough to take on communism?
Me: (Speechless.)
And Vietnam is one of the places I would die to go to.