You have no evidence that his mother is manipulating him.
In what seems to have been a total failure to prevent her son from being bullied for believing sex is real and for being Jewish, she helped him post a video he has made about what he believed to the internet.
The school reacted to having their failure exposed and (vidictively ie they could have suggested having a meeting) referred hinm to Prevent. (Whaaaaaaaaaaaaaaaat??)
He feels, powerless, and I suspect his mother does as well. The institutions (education & police) have closed ranks and left her with view options.
And given how many gender critical women have turned to the DM because our liberal media wont give them a voice, she has taken equivilent action.
If that boy was your son what would you do.
The idea that state sponsored organisation should just be meekly accepted is terrifyingly dangerous.
The problem is the school.
They should be reported to which ever education authority they are part of.
Or alternatively the UK could report Netanyahu to Prevent.