Oscar nominee Lily Gladstone is taking aim at the Super Bowl champion Kansas City Chiefs, criticizing the team’s name and its fans’ use of the tomahawk chop in a series of comments made public since the big game. The 37-year-old “Killers of the Flower Moon” actress is a Native American whose heritage is that of the Siksikaitsitapi and Niimiipuu tribal groups, which are rooted in the northwestern U.S. and in Alberta, Canada. Gladstone also had choice words for the Super Bowl runner-up San Francisco 49ers, saying, “Honestly, you could hold both teams accountable.” “The 49ers are based on the Cal…