The film does not feature any explicit LGBTQ+ themes or characters. Its narrative centers on classic Looney Tunes comedic dynamics and a sci-fi plot, maintaining a family-friendly tone without addressing LGBTQ+ issues. Therefore, the net impact is N/A due to no depiction.

Based on available information, The Day the Earth Blew Up: A Looney Tunes Movie does not feature any transsexual characters or themes. The narrative focuses on classic Looney Tunes characters in a comedic adventure, with no documented representation of transsexual identity in its plot, cast, or thematic content.

The film primarily focuses on Daffy Duck and Porky Pig's efforts against Marvin the Martian and his alien forces. There are no significant female characters depicted engaging in direct physical combat where they defeat one or more male opponents through skill, strength, or martial arts.

The film explicitly states that all main characters, including Daffy Duck, Porky Pig, and Petunia Pig, retain their established canonical genders from the source material. No characters' on-screen gender differs from their original or established identities.

The film's main characters are anthropomorphic animals, which lack human racial identities. The human characters are original to this film, with no prior established racial depictions in source material. Thus, no character meets the definition of a race swap.