Frankie Stein, originally a female character, is recast as explicitly nonbinary with they/them pronouns featured in dialogue and character presentation, serving as a focal point for identity messaging alongside Clawdeen's half-human/half-werewolf secret as an allegory for hidden identities and acceptance. The plot revolves around embracing one's 'true monster heart,' diversity of monster forms, and rejecting human norms, with monsters portrayed as inherently good and humans as threats or bigoted.

Casting emphasizes racial and ethnic diversity in lead roles, while reviews highlight pronoun discussions and inclusivity as deliberate features. This produces significant audience backlash labeling it LGBTQ indoctrination and woke propaganda, with criticisms of forced modern identity politics overriding the original toy-line's lighter monster fun. As children's media, these elements carry amplified weight, making ideology a core driver rather than incidental.