Some people just won’t take no for an answer.

The Girl Guides have become embroiled in infighting over a ban on boys who identify as girls.

A splinter group has formed in an effort to force the organisation to reverse the trans ban, introduced last year following a Supreme Court ruling on the meaning of sex under equality law.

But it’s Girl Guides. Because it’s Girl Guides, it should be girls, not girls and some boys. Just girls. That’s ok. That’s allowed.

Calling itself Guiders Against Trans Exclusion (Gate), the group encourages Guide leaders to oppose the policy through activism, including writing to politicians and attending protests.

It encourages members to show opposition to the ban by wearing the Guide’s promise badge upside down, changing profile pictures on social media to show support for trans allies, and wearing a trans pride necker scarf.

But why should Guide leaders oppose the policy? Why can’t there be a Girl Guides?

One Brownie leader, who asked to remain anonymous, said: “It’s an increasingly hostile environment. Communications from Girlguiding HQ seem to assume everyone is devastated by the rule change. I haven’t had a single parent ask me about it.

“The online briefings after the policy change focused on how sorry they were and how they could continue to support trans girls. The idea that some parents or volunteers might welcome the change seems beyond them.”

Bad theory of mind strikes again. “I think the right way, therefore everyone else must think the way I do, apart from a few warped people who are why we right-thinkers are having to fight them.”

A social media video published by Thatcham Rangers, a Girlguiding group in Thatcham, in Berkshire, shows girls holding slogans such as “trans girls are girls” and “our story includes trans girls”, while the Girlguiding promise is read over the footage.

In separate correspondence seen by The Telegraph, the group leader said she had been working with a local trans activist linked to a Pride organisation.

Girls must be made to submit. No other outcome is acceptable.

In the briefing video, organisers say they plan to “put pressure” on Girlguiding, MPs and other public bodies, and claim to have received support from organisations including the Scottish Green Party.

Individuals linked to Gate are understood to be represented on a Girlguiding taskforce – a panel of 16 set up to explore how trans girls and women can be supported by the organisation. Newbury Pride is also understood to be represented on the panel, according to correspondence seen by The Telegraph.

Girls must not be allowed to have anything just for girls. That would be treason. Female people are inferior, and most of them are sluts; they must be under discipline at all times.