Is it really pigeonholing to say that an actor's voice and a character's voice are mismatched in terms of range, color, and style? Yes, it is. You have a preconceived idea of how a role should be sung and what key the songs should be in. They will be adapted for the person playing the role in a the film, which is an adaptation of the stage musical. I"m sure some of his material will be cut, modified, or changed entirely. He might even have new material to sing or new scenes to play.
The most important characteristics for Enjolras are that he is charismatic, persuasive, focused, and deeply passionate about his cause. He's the leader of a student revolt. He's not a superhero or General Patton. He can be played any number of ways to achieve that perception by the other characters in the story, as long as the audience believes that he can lead the students into revolt.
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22