More than downright unsettling. A lot of people find diversity agitating and scary. Anything or anyone different from themselves is seen as alien. There are members of my own extended family whom I have actually seen get visibly shaken/frightened when seeing a physically handicapped child enjoying time on a beach. These same people see those who speak other languages as "weird." When I mentioned that both of my children are fluent in other languages and it is an asset for them in the real world, well, they were silenced for a minute, and then told that it was OK, because they learned it in school.
Huh?