The film "Public Enemy, 2002" is a South Korean crime thriller centered on a detective's pursuit of a murderer. There are no identifiable LGBTQ+ characters or themes present in the narrative, resulting in no portrayal to evaluate.

Currently, there is not enough information available to assess the film's portrayal of transsexual characters or themes. Without specific plot details or character arcs related to trans identity, a determination of positive, negative, or neutral impact cannot be made.

The film focuses on a male detective and a male killer, with action sequences predominantly featuring male characters. There are no significant female characters depicted engaging in or winning close-quarters physical combat against male opponents.

No information is provided regarding source material, previous adaptations, or historical figures for the 2002 film "Public Enemy." Without a prior canonical baseline, it is impossible to determine if any character's gender was swapped.

Public Enemy (2002) is an original South Korean film with characters created for the movie. There is no prior source material, historical record, or previous adaptation establishing the characters' races differently, thus no instance of a race swap.