The report also claims that some of these schools teach "repugnant" beliefs about the wickedness of Western society and Jews.
The claims in the report, written by Denis MacEoin in response to a commission from Civitas, will provoke ritual cries of "Islamophobia" from the Muslim Council of Britain and fellow travellers such as Koran Armstrong. MacEoin has been careful to back up his claims with evidence - in particular, screen captures of links to Islamic hate-mongers, including supporters of Al-Qaeda.
Civitas, however, is not prepared to endorse MacEoin's 61.6 per cent figure, which will not appear in the published version of When Worlds Collide. A spokesman for Civitas explains: "We want to concentrate on claims that are absolutely robust, rather than complicated material, some of it in Arabic, that might unjustly damage someone's reputation."
Perhaps the most alarming finding of the draft I've seen is that so many of these schools (including ones with no connections to political extremism) are bricking up their pupils behind a wall of Koranic injunctions and Sharia law.
The schools known as Darul Ulooms, which base their curriculum on a seventeenth-century Indian teaching system, include very few secular subjects, claims the report. It says: "Their aim is not to prepare pupils for life in the wider world, but to give them the tools for a more limited existence inside the Muslim enclaves."
The consequences for bright Muslim British girls are absolutely dire. Lively intellects are being destroyed and brilliant careers cut off before they can begin. To quote the report again: "Every year, an incalculable number of Muslim teenagers and young women are lost to the wider world that informs their citizenship."
The numbers are increasing fast, and there is confusion over how many schools exist. The growth of non-Muslim schools, says MacEoin, is "hugely overshadowed by a rapidly growing sector of Muslim institutions. These now number 127 [sic] full-time schools and an estimated 700 part-time madrassas for intense religious instruction [and that doesn't include the Darul Uloom seminaries] … Many recreate in the UK the style and content of schooling that can be found in Pakistan, Bangladesh and India." Great.
And all this is happening with the implicit consent of the Government, Ofsted – and Christian leaders, who bang on about the threat to "faith schools" (and, in the case of R. Williams, the virtues of Sharia) while shielding their eyes from the evidence that many Muslim faith schools are poisonously anti-Christian.
I've seen many of the extremely damaging screen grabs on which MacEoin bases his claims. Memo to the Muslim Council of Britain: start lining up irate spokesmen now.