It's also a generational thing. My grandfather knew the original lyrics (and said them in public once the dementia set in - ugh). By the time we were kids, our parents had lived through race riots and forced integration. They taught us differently, even if it was sometimes a case of "do as I say, not as I do".<quoted text>Where's everywhere else? from who? Other than at school or playing with other school kids after school, where and when were people singing this rhyme in any form? Guess I just did not grow up around open racists.
Racial tension still exists, but it is not as institutionalized or widely acceptable.