Very interesting article. I was a homeschooler in the 1980's and it was not common back then, but it was my response to the failure of the parochial school system to survive the crisis of the 60's (my old school turned into an expensive prep school, like so many others) and I certainly was not about to place my child in public school.
There is no reason for the German gov't to fear that homeschooling will produce children un-enculturated. All I was required to do in my curriculum was present it to the school superintendent and then have my daughter ready for the standard tests given in certain grades. That's all any gov't has to do: provide the standards that all children must have an opportunity to meet and then allow the parents to use their own religious and other beliefs in meeting those standards.
It is all just very satanic taking of children's minds as slaves, that's what this stuff in the schools is.
There is a reason Jesus chose to show himself as a child! There is a reason we have a "Holy Family" in our religion, and not a "holy gov't"!