We are very much a novelty in the home ed community tbh. My kids don't have SEN (although I suspect one is neurodiverse but I don't think it presents as strongly because he doesn't have the challenges he would at school). But we are very pro science, pro vax, not crunchy at all. We largely home ed because the kids are very bright and were getting bored at school, and because there are several things about the UK state school system I don't like which I won't go into as irrelevant. But I have no ideological opposition to school, don't think they are indoctrination factories, don't believe in any conspiracy theories. We have found a few others like us but they are few and far between if I'm honest.
Marten and Gordon don't seem that far removed in terms of their ideologies to several parents I know personally.