Unless the use of such a word is likely to sow or increase hatred in the audience I am not in favour of censorship in this case. . As some people said previously, if the word offends you do not sing the song but do not alter the original.Far too many songs would then have to be sung differently and there would go much historical value.Even black people do not demand the removal and destruction of all racist memorabilia, acknowledging the necessity of preserving the history, though it was disgraceful and totally wrong.