I asked Grok:
Mumsnet users' overall reaction to the Good Law Project's "Monster" campaign (launched around July 13-14, 2026) has been strongly negative, dismissive, and highly mocking.
mumsnet.com
The campaign features billboards and artwork with CGI monsters/animals (e.g., sharks, gorillas, T-Rexes) and slogans like "Of course I support trans – I’m not a monster," intended to push back against anti-trans rhetoric by suggesting support for trans people is the non-monstrous, majority view. It appeared at Trans Pride/Pride events.
diva-magazine.com
Key elements of Mumsnet reaction (from the main dedicated thread in Women's Rights)
A very active thread (hundreds of replies shortly after posting) started by user Ereshkigalangcleg, who called GLP "reliably foolish."
mumsnet.com
Widespread ridicule: Users described it as "ridiculous," "desperate and pathetic," "WTAF," "jumped the shark" (multiple shark puns), "unintentionally very funny," "the product of a task on The Apprentice," and meme-gold. Many highlighted the irony of portraying animals as "monsters."
mumsnet.com
Criticism of framing: Posters noted it creates a false binary (support trans or be a monster), which could alienate people, and called the design unclear or counterproductive. Some pointed out grammatical issues with "support trans" (treating it like a noun/ideology rather than people).
mumsnet.com
Humor and memes: Lots of joking about supporting trans while being/identifying as a monster, animal rights (gorillas/sharks aren't monsters), appropriation of dinosaurs, etc. Several users said they'd "admit" to being a monster.
mumsnet.com
Broader skepticism: Comments linked it to GLP's perceived overreach or ineffectiveness, with some noting even trans activists/Reddit users (e.g., r/transgenderUK) weren't happy with the framing or execution.
reddit.com
Sentiment summary: Near-universal derision in the visible thread, with little to no defense of the campaign. Mumsnet's women's rights forum is generally gender-critical/skeptical of certain trans activism, so this aligns with the community's leanings—but the campaign's execution drew criticism even beyond that (including from some intended allies). The campaign was reportedly pulled or apologized for quickly after backlash.
x.com
This reflects Mumsnet's typical lively, opinionated style on these topics, amplified here by the campaign's awkward visuals and messaging.
Muptile shark puns. Lol.