The Hobbit: An Unexpected Journey does not include any discernible LGBTQ+ characters or themes. The narrative focuses on a high fantasy adventure without exploring aspects of queer identity or relationships.

The film "The Hobbit: An Unexpected Journey" does not feature any identifiable transsexual characters or themes within its narrative. The story focuses on a quest involving hobbits, dwarves, and wizards, with no elements related to transgender identity or experiences. Therefore, the net impact on the portrayal of transsexual characters and themes is N/A.

The film does not feature any female characters engaging in direct physical combat against male opponents. The significant female character, Galadriel, appears in a non-combat role, primarily using magical abilities rather than physical fighting.

All major characters in 'The Hobbit: An Unexpected Journey' maintain the same gender as established in J.R.R. Tolkien's original novel, 'The Hobbit'. There are no instances of a character canonically established as one gender being portrayed as a different gender in the film.

All major characters in The Hobbit: An Unexpected Journey, including Bilbo Baggins, Gandalf, and the Dwarves, are portrayed by actors whose race aligns with their established depictions in J.R.R. Tolkien's source material and prior adaptations.