The 1980s detective series 'Riptide' does not feature any identifiable LGBTQ+ characters or themes within its narrative. Consequently, there is no portrayal to evaluate against the provided rubric, resulting in a 'N/A' rating for its net impact on LGBTQ+ representation.

Based on available plot summaries and cast information for the 1969 TV series 'Riptide', there are no identifiable transsexual characters or themes present. Consequently, the series offers no portrayal to evaluate under the given rubric.

The show 'Riptide' primarily focuses on its three male protagonists handling physical confrontations. While female characters are present, including recurring police lieutenants and various guest stars, there are no documented instances where a female character is depicted as victorious in close-quarters physical combat against one or more male opponents.

Riptide (1969) was an original Australian drama series. All characters were created for this production, meaning there was no prior canonical source material or historical record for their gender to be established and subsequently altered.

Riptide (1969) is an original Australian television series. Its characters were created for this production and are not based on prior source material or historical figures, thus precluding any race swaps.