Trans dispute prompts new gay faction to break with Stonewall.

Activists at London's annual Pride parade (CREDIT: STEPHEN CHUNG/LNP /LONDON NEWS PICTURES LTD)

Europe’s biggest LGBT rights organisation has split after being accused of promoting a “trans agenda” at the expense of gay and lesbian rights.

Stonewall is known for campaigning for the equality of lesbian, gay, bisexual and trans people across Britain…