A major theme of the film is the historical attitude of white settlers toward Native Americans. Ford was not the first to attempt this examination cinematically, but his depiction of harshness toward Native Americans was startling, particularly to later generations of viewers; Roger Ebert wrote, "I think Ford was trying, imperfectly, even nervously, to depict racism that justified genocide." At the heart of "The Searchers" is Wayne's performance as the angry, vengeful Ethan Edwards. From the beginning of his quest, he is quite clearly less interested in rescuing Debbie than in wreaking vengeance on the Comanches for the slaughter of his brother's family.