I think he was referring, rather hyperbolically, to Europeans discussing racism as an exclusively American issue when western European countries have towns with offensive names (and more broadly, European countries' own problems with minorities).
EDIT: Made my own wording clearer.
Sign...
"Europeans" don't say that racism doesn't exist in "Europe", we say that it's difference in ideology and practice than racism in USA, but for some reason you people are completely unable to understand what that mean, no matter how many times it's told, explained or example are given.
What do you mean "you people?"