Due to the absence of any provided plot details or character descriptions, it is not possible to evaluate the film's portrayal of LGBTQ+ characters or themes. Therefore, the net impact is categorized as N/A.

Based on available plot summaries and character descriptions for 'Rendez-vous de l'espérance' (1950), there are no identifiable transsexual characters or themes present in the film's narrative. Therefore, the film has no net impact on the portrayal of transsexual individuals.

The movie does not contain any action or adventure elements.

This 1950 film does not appear to be an adaptation of prior source material or a biopic of historical figures. Therefore, there are no pre-established characters whose gender could have been altered for this screen portrayal.

The 1950 film "Rendez-vous de l'espérance" is an original production, not an adaptation of source material with pre-established character races, nor a biopic of a historical figure. Thus, the concept of a race swap does not apply.