It is pretty misleading for this article to talk about homeschooling being a “fundamental change” without mentioning that homeschooling was the default practice for most of human history. If anything, this is just a return to a long-established practice, not a fringe movement.
This is part of the reason why business monopolies are social poison.
I'm sure homeschooling can work out fine, but that is hardly assured by simply being inline with historical tradition. If you go to war with broadswords and spears, you're going to lose. If you insist on living without indoor plumbing or refrigerated food storage, you're likely going to have your kids taken away, and rightfully so, in spite of the fact humans lived that way by default longer than not.
Homeschooling was also the default thing a ±century ago, while you'd need to go back pretty far to find true animal/human sacrifice in European/European-American culture.
I better example might be freedom from surveillance. It's a totally fringe lifestyle to not be tracked everywhere you go, at least in a developed country.
But your rhetoric might be useful for shooting down privacy advocates during the next dust-up. Privacy may have been common in the past but now its fringe, just like animal sacrifice. Key escrow is the future!
You're proving GP's point, that was the norm in developed countries 100 years ago and to a relative degree 50 years ago. The organs of the state and of capital which effected surveillance or tracking were tiny and isolated compared to what they are now.
Make those two untrue and it's like you never existed.