What makes lex luthor a human threat to superman?

In the film Man of Tomorrow, Lex Luthor is cast as a human opponent of Superman, played by Nicholas Hoult. The character is positioned as a primary antagonist, which establishes him as a threat to the superhero. While the narrative focuses on the duo reluctantly teaming up to confront the superintelligent villain Brainiac, Luthor’s presence as a human adversary underscores the tension between human ambition and Kryptonian ideals. The film’s premise relies on Luthor’s opposition to Superman to create conflict and drive the story forward, though specific motivations or tactics are not detailed in the available sources.