The survey isn't very valid actually.
It asked for who you would not want as a neighbour.
It didn't ask things like 'have you ever felt racial prejudice'
My personal experience tells me that racism in the US is far worse than in countries like the UK, Kenya, Namibia, Botswana, Namibia, Canada, Mexico, Panama, Costa Rica.
In the US, it's far less visible, but far more reaching and far more invading.