The film 'Naalaiya Theerpu' does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses on a conventional action-drama plot without incorporating queer identities or storylines, resulting in no portrayal of LGBTQ+ elements.

There is currently insufficient information available regarding the film's plot or characters to assess the portrayal of transsexual individuals or themes. Consequently, a definitive evaluation of the net impact cannot be made at this time due to the absence of relevant details.

Based on available plot summaries and cast information, there are no indications of female characters engaging in or winning direct physical combat against male opponents in the film.

There is no information provided about source material, previous adaptations, or historical figures for 'Naalaiya Theerpu' (1992). Without a prior established canon for its characters, it is not possible to identify any instances of gender swaps.

The film "Naalaiya Theerpu" is an original story with characters created for this specific movie. There is no prior source material, historical context, or previous adaptations to establish a canonical race for any character, thus precluding a race swap.