Based on available information, 'El regimiento ciclista' does not appear to feature any identifiable LGBTQ+ characters or themes. There is no evidence to suggest any specific portrayal, positive, negative, or neutral, of queer identity within the film's narrative.

Based on the provided information, there are no identifiable transgender characters or themes present in 'La revista de la escuadra argentina'. Consequently, an evaluation of its portrayal and net impact is not applicable.

The movie does not contain any action or adventure elements.

Given the film's early release date (1901) and title, it is highly improbable that "El regimiento ciclista" is an adaptation of source material with pre-established characters or a biopic of specific historical figures. Therefore, no character exists who was canonically or historically established as one gender and then portrayed as another.

This 1901 film is an early work, and there is no evidence of pre-existing source material, historical figures, or prior canon with established character races that could be subject to a race swap.