Who Dey vs Who Dat

[Sled21]

It's pretty obvious Who Dat was in use first as a minstrel show phrase, but the Saints fans didn't adopt it as a football cheer until after Who-Dey. What I never understand is how "Redskins" was so racist they threatened to take the football team away from the owner, but "Who Dat?" is fine, as is the chant the KC Chief's fans use that sounds like something out of a 1950's western where all the Indians were played by white guys.