Was Shel Silverstein just being crass
in the lyric sung by Johnny Cash -
or was he being amazingly, subversively,
unamericanly ironic?
The boy was not a boy, but a lot of men and women
their name not Sue but Sioux,
and ethnically cleansed by some of American Democracy's
many land-grabs and pogroms
carried out by racist rednecks
and Ulstermen with bombs.

(many more than 9 million aboriginal Americans were killed in every possible way by Europeans)

Anthony Weir

http://www.poemhunter.com/poem/people-called-sioux-a-holocaust-poem/