Based on available information, Desert Dawn does not explicitly feature LGBTQ+ characters or themes. The film's plot centers on traditional action-thriller elements, suggesting an absence of LGBTQ+ representation in its narrative or character details. Therefore, the film's net impact on LGBTQ+ portrayal is N/A.

No information is available about the film Desert Dawn's plot or characters, making it impossible to assess the presence or portrayal of transsexual individuals or themes. Therefore, an evaluation of its net impact on the trans community cannot be determined.

The film's description indicates that its female presence is limited to Cheyenne, a doctor, who is not portrayed as a combatant. It explicitly states the film does not feature women in action-centric roles or physical confrontations.

The provided information indicates "Desert Dawn" features original characters, with no evidence of pre-established characters being portrayed by a different gender. The film's description explicitly states it does not appear to involve gender-swapped roles.

The provided information does not indicate that "Desert Dawn" is an adaptation or features historical figures. There is no explicit mention of any character being previously established as one race and then portrayed as a different race in this film.