"They could be Canadian?" We have a rule against racism in all it's forms. Canada as a tourist destination actually seems much more interesting to me. [But I will go to America for Power Morphicon!]
The term was used by Americans in World War 2 and it brings back bad memories for them.
That is enough. If the people themselves [ANY of the people] have a problem with it,that's it. What would you call somebody from Pakistan then? [Don't answer it's rhetorical]
There's a lot of animosity still about Pearl Harbour. I can tell. The Japanese just wouldn't have bothered flying halfway across the world to this small island which is why I don't think "Ooh,what would granddad think about me spending time with Japanese people?"
Have fun driving over there.