Personally , IF I decide to perform a traditional song which has any 'dubious' content in the lyric , and any one in the audience takes exception , that is THEIR problem , not mine . I can see NO good reason to change ANY traditional lyric because 'modern' thought
puts a different meaning to any part of the lyric . Its just the same as someone objecting to Hunting or Whaling songs because Hunting and Whaling are not approved of . The fact that hunting and whaling are not the sort of activities that SHOULD be approved of doesnt stop the songs being worth singing .