The numbers of home ed parents who are genuinely illiterate and doing home ed only through mistrusting the system, and without any bad experiences of school must be vanishingly tiny, despite everyone on Mumsnet apparently knowing lots of them. Op says it's not about parents choosing to HE because of lack of SEN Support, but i rather think it could be.
If i knew then what i knew now, i would have deregistered when my kids ebsa first started, before it destroyed mine and my kids mental health and i would have joined the cohort of parents who are not equipped to HE but doing so because of "the system." The government are talking about cutting support for EHCPs so only the most affected children will be able to get one. That means there will be very large numbers of SEN children who will find it almost impossible to get any support. Where do they go then? Home ed.
I am fairly intelligent and well educated, and i have been through the horrific fight of trying to get "support" from a school and local authority for my child's EBSA, (plot twist, there is no support) i can see how an "illiterate" parent would be forced to remove their child from school and home educate, no matter how ill equipped, because of a lack of support.
Parents might not know know their child has SEN, especially if they have SEN themselves. They might just know their child doesn't fit neatly in school. They might not know how to complain or seek support, or might not have insight into their child's needs and what help they might need, much less how to go about forcing a school to provide it. (There's actually no way for a parent to force a school to provide support that their child is legally entitled to without going through the complaint processes and tribunal which could take the best part of a school year. Even then it doesn't guarantee support). Those children have to go somewhere.
What's worse, a parent who isn't very educated and might not do a good job of HE, or a child who is being destroyed by their experience at school and may be suicidal? Anyone tried to get help from CAMHS recently? Nothing there either.
Until you've been through it, you wouldn't actually believe how soul and mental health destroying it is. It's made me suicidal. There is NO help. The system is designed to crush children and their parents. Something like 98% of refusal to assess for EHCP get overturned at tribunal. Schools can just say no to proving SEN Support. Nobody will make them. Local authorities refuse to assess as a baseline and wait and see which parents have the ability, time, and capacity to fight on. That's thousands of families who are forced to go to a tribunal , which is a terrifying prospect for most people, to get their child the support they were always legally entitled to. Thousands and thousands of children left without support. I feel like I've seen behind the curtain, and so parents who chose to home ed citing "the system" for children with any additional needs actually have it right. Do you know what it's like to have your child say they'd rather die than go to school? And when you report that to school, everyone just shrugs and says "drag them in?" If you give up, you deregister and they get to tick a little box that says "parents choose to hone educate".
It's very very easy to believe that a parent who doesnt have the ability or capacity to deal with the widespread discrimination, fines, and gaslighting might just take their child out of school because of "the system" and "the government" which might make them sound like a conspiracy theorist, but it could actually just be a parent that can't take any more of the parent blaming, threats of fines, and the gaslighting that are a default for parents of children who are struggling with school.
There were some parents at my child's school that were going through the same as us but they said they didn't even know where to start making a complaint so they were just plodding along until eventually they'll be forced to home ed because there are no other options for parents who don't know how to fight, or don't have the energy for the fight anymore. They're no more equipped to educate their child than i am, but while i would know exactly why i was being forced into that position because I've been through every complaint process with the school and LA, and i know how badly we've been failed, those other parents , illiterate or not, wouldn't know why so they might just say "the system".
My point is, the op is about illiterate parents taking their children out of school because of the system or the government even though they might not actually be equipped to home ed. They might not actually be crazy. But they might not have the knowledge to put into words exactly why they are right. It is the system. And how would you know what those families have been put through, or have seen others be put through unless you ask them all individually?
If you or your child sailed through school with no issues, please take a minute to think about how unusual and how lucky you are.