Bit more complicated than that Meself, but well worth refreshing (not sure we need two)
Many of the traditional songs containing racist references are not 'racist' by intention, but merely reflect the commonplace of the times they were made
That doesn't make them 'ok' any more than the values they reflect were "ok", but they are interesting views of history
I find the sea song, 'The Flying Cloud' one of the best in the genre as it takes the opposite view to that which was current at the time by expressing pity for the plight of black slaves dying on the voyage from Africa in the vivid way it does
Jim