Sooner = Meta-cheater
Perhaps you're a clueless on this topic as I was yesterday, but "Sooners" is a more offensive nickname than "Redskins" . . . the University of Oklahoma nickname celebrates jumping the gun in one of the most infamous land grabs in American History . . . it's bad enough that men and women were trampling, shooting, knifing, and generally denigrating their fellow man in a mad rush to be the first to one of 42,000 parcels of Indian Territory . . . this was enough of a disaster for the Cherokee, Choctaws, Cheyenne and Apache, but a "sooner" is someone who tried to sneak across the boundary line early-- so they could claim a prime parcel before anyone else-- so a "sooner" is another level of cheating, where you're trying to cheat the people who are cheating the Native Americans . . . sooners are meta-cheaters, and apparently, a few people recognize what the name signifies and are taking action, but I would have never known the meaning of the nickname "sooner" if I hadn't started reading Killers of the Flower Moon: The Osage Murders and the Birth of the FBI, a fascinating account of Indian land rights, oil, and murder; the book is by David Graham, who also wrote The Lost City of Z, which I highly recommend.