People with culture enriching UK schools...

[Beskar]

This American has no problem with private schools teaching this, be it islamist or creationist nonsense. The schools in question do not appear to be private.

They are academy schools. They are essentially 'private entities' in a hands-off management point of view. Basically, the current government introduced the system thinking independent/market forces will produce a better system, think of it as privatisation but with government subsides.

Schools are typically made up of the teaching staff, and the governors. A group of rather extremist elements tried to covertly take over the schools by getting themselves appointed and their co-conspirators as governors and expanding their control by influencing the hiring of important positions such as teachers and the head. This is a process that took a few years.

This is pretty much similar/parallel to the movements of creations in US schools, where they covertly attempt to take over them and push their agenda.

The issues with coups is that you have to be in the know to actually know they are going on. Are you going to reject muslim parents of school children who are pupils at your school from being governors because they identify themselves as Muslim? The obvious answer is 'no'. This plan ended up leaked when someone who was told/discussed this operation in private whistleblowed on it by sending an anonymous letter, and there ended up being a serious investigation and report into it. Think of it as Edward Snowden, but in the school system.

tl;dr version is that this is getting challenged and calling for greater accountability to prevent such abuse and covert operations from occurring.